21838740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1$

素因数の和:222

約数の個数: 192

約数和(自身を含む): 79349760

約数和(自身を除く): 57511020

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 29, 30, 33, 35, 42, 44, 55, 58, 60, 66, 70, 77, 84, 87, 105, 110, 116, 132, 140, 145, 154, 163, 165, 174, 203, 210, 220, 231, 290, 308, 319, 326, 330, 348, 385, 406, 420, 435, 462, 489, 580, 609, 638, 652, 660, 770, 812, 815, 870, 924, 957, 978, 1015, 1141, 1155, 1218, 1276, 1540, 1595, 1630, 1740, 1793, 1914, 1956, 2030, 2233, 2282, 2310, 2436, 2445, 3045, 3190, 3260, 3423, 3586, 3828, 4060, 4466, 4564, 4620, 4727, 4785, 4890, 5379, 5705, 6090, 6380, 6699, 6846, 7172, 8932, 8965, 9454, 9570, 9780, 10758, 11165, 11410, 12180, 12551, 13398, 13692, 14181, 17115, 17930, 18908, 19140, 21516, 22330, 22820, 23635, 25102, 26796, 26895, 28362, 33089, 33495, 34230, 35860, 37653, 44660, 47270, 50204, 51997, 53790, 56724, 62755, 66178, 66990, 68460, 70905, 75306, 94540, 99267, 103994, 107580, 125510, 132356, 133980, 141810, 150612, 155991, 165445, 188265, 198534, 207988, 251020, 259985, 283620, 311982, 330890, 363979, 376530, 397068, 496335, 519970, 623964, 661780, 727958, 753060, 779955, 992670, 1039940, 1091937, 1455916, 1559910, 1819895, 1985340, 2183874, 3119820, 3639790, 4367748, 5459685, 7279580, 10919370, 21838740]

約数ペア:

[(1, 21838740), (2, 10919370), (3, 7279580), (4, 5459685), (5, 4367748), (6, 3639790), (7, 3119820), (10, 2183874), (11, 1985340), (12, 1819895), (14, 1559910), (15, 1455916), (20, 1091937), (21, 1039940), (22, 992670), (28, 779955), (29, 753060), (30, 727958), (33, 661780), (35, 623964), (42, 519970), (44, 496335), (55, 397068), (58, 376530), (60, 363979), (66, 330890), (70, 311982), (77, 283620), (84, 259985), (87, 251020), (105, 207988), (110, 198534), (116, 188265), (132, 165445), (140, 155991), (145, 150612), (154, 141810), (163, 133980), (165, 132356), (174, 125510), (203, 107580), (210, 103994), (220, 99267), (231, 94540), (290, 75306), (308, 70905), (319, 68460), (326, 66990), (330, 66178), (348, 62755), (385, 56724), (406, 53790), (420, 51997), (435, 50204), (462, 47270), (489, 44660), (580, 37653), (609, 35860), (638, 34230), (652, 33495), (660, 33089), (770, 28362), (812, 26895), (815, 26796), (870, 25102), (924, 23635), (957, 22820), (978, 22330), (1015, 21516), (1141, 19140), (1155, 18908), (1218, 17930), (1276, 17115), (1540, 14181), (1595, 13692), (1630, 13398), (1740, 12551), (1793, 12180), (1914, 11410), (1956, 11165), (2030, 10758), (2233, 9780), (2282, 9570), (2310, 9454), (2436, 8965), (2445, 8932), (3045, 7172), (3190, 6846), (3260, 6699), (3423, 6380), (3586, 6090), (3828, 5705), (4060, 5379), (4466, 4890), (4564, 4785), (4620, 4727)]