21660100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1$

素因数の和:158

約数の個数: 144

約数和(自身を含む): 61246080

約数和(自身を除く): 39585980

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 29, 35, 44, 50, 55, 58, 70, 77, 97, 100, 110, 116, 140, 145, 154, 175, 194, 203, 220, 275, 290, 308, 319, 350, 385, 388, 406, 485, 550, 580, 638, 679, 700, 725, 770, 812, 970, 1015, 1067, 1100, 1276, 1358, 1450, 1540, 1595, 1925, 1940, 2030, 2134, 2233, 2425, 2716, 2813, 2900, 3190, 3395, 3850, 4060, 4268, 4466, 4850, 5075, 5335, 5626, 6380, 6790, 7469, 7700, 7975, 8932, 9700, 10150, 10670, 11165, 11252, 13580, 14065, 14938, 15950, 16975, 19691, 20300, 21340, 22330, 26675, 28130, 29876, 30943, 31900, 33950, 37345, 39382, 44660, 53350, 55825, 56260, 61886, 67900, 70325, 74690, 78764, 98455, 106700, 111650, 123772, 140650, 149380, 154715, 186725, 196910, 216601, 223300, 281300, 309430, 373450, 393820, 433202, 492275, 618860, 746900, 773575, 866404, 984550, 1083005, 1547150, 1969100, 2166010, 3094300, 4332020, 5415025, 10830050, 21660100]

約数ペア:

[(1, 21660100), (2, 10830050), (4, 5415025), (5, 4332020), (7, 3094300), (10, 2166010), (11, 1969100), (14, 1547150), (20, 1083005), (22, 984550), (25, 866404), (28, 773575), (29, 746900), (35, 618860), (44, 492275), (50, 433202), (55, 393820), (58, 373450), (70, 309430), (77, 281300), (97, 223300), (100, 216601), (110, 196910), (116, 186725), (140, 154715), (145, 149380), (154, 140650), (175, 123772), (194, 111650), (203, 106700), (220, 98455), (275, 78764), (290, 74690), (308, 70325), (319, 67900), (350, 61886), (385, 56260), (388, 55825), (406, 53350), (485, 44660), (550, 39382), (580, 37345), (638, 33950), (679, 31900), (700, 30943), (725, 29876), (770, 28130), (812, 26675), (970, 22330), (1015, 21340), (1067, 20300), (1100, 19691), (1276, 16975), (1358, 15950), (1450, 14938), (1540, 14065), (1595, 13580), (1925, 11252), (1940, 11165), (2030, 10670), (2134, 10150), (2233, 9700), (2425, 8932), (2716, 7975), (2813, 7700), (2900, 7469), (3190, 6790), (3395, 6380), (3850, 5626), (4060, 5335), (4268, 5075), (4466, 4850)]