21223020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^3\times {\mathrm{23}}^1$

素因数の和:81

約数の個数: 192

約数和(自身を含む): 76769280

約数和(自身を除く): 55546260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 23, 26, 28, 30, 35, 39, 42, 46, 52, 60, 65, 69, 70, 78, 84, 91, 92, 105, 115, 130, 138, 140, 156, 161, 169, 182, 195, 210, 230, 260, 273, 276, 299, 322, 338, 345, 364, 390, 420, 455, 460, 483, 507, 546, 598, 644, 676, 690, 780, 805, 845, 897, 910, 966, 1014, 1092, 1183, 1196, 1365, 1380, 1495, 1610, 1690, 1794, 1820, 1932, 2028, 2093, 2197, 2366, 2415, 2535, 2730, 2990, 3220, 3380, 3549, 3588, 3887, 4186, 4394, 4485, 4732, 4830, 5070, 5460, 5915, 5980, 6279, 6591, 7098, 7774, 8372, 8788, 8970, 9660, 10140, 10465, 10985, 11661, 11830, 12558, 13182, 14196, 15379, 15548, 17745, 17940, 19435, 20930, 21970, 23322, 23660, 25116, 26364, 27209, 30758, 31395, 32955, 35490, 38870, 41860, 43940, 46137, 46644, 50531, 54418, 58305, 61516, 62790, 65910, 70980, 76895, 77740, 81627, 92274, 101062, 108836, 116610, 125580, 131820, 136045, 151593, 153790, 163254, 184548, 202124, 230685, 233220, 252655, 272090, 303186, 307580, 326508, 353717, 408135, 461370, 505310, 544180, 606372, 707434, 757965, 816270, 922740, 1010620, 1061151, 1414868, 1515930, 1632540, 1768585, 2122302, 3031860, 3537170, 4244604, 5305755, 7074340, 10611510, 21223020]

約数ペア:

[(1, 21223020), (2, 10611510), (3, 7074340), (4, 5305755), (5, 4244604), (6, 3537170), (7, 3031860), (10, 2122302), (12, 1768585), (13, 1632540), (14, 1515930), (15, 1414868), (20, 1061151), (21, 1010620), (23, 922740), (26, 816270), (28, 757965), (30, 707434), (35, 606372), (39, 544180), (42, 505310), (46, 461370), (52, 408135), (60, 353717), (65, 326508), (69, 307580), (70, 303186), (78, 272090), (84, 252655), (91, 233220), (92, 230685), (105, 202124), (115, 184548), (130, 163254), (138, 153790), (140, 151593), (156, 136045), (161, 131820), (169, 125580), (182, 116610), (195, 108836), (210, 101062), (230, 92274), (260, 81627), (273, 77740), (276, 76895), (299, 70980), (322, 65910), (338, 62790), (345, 61516), (364, 58305), (390, 54418), (420, 50531), (455, 46644), (460, 46137), (483, 43940), (507, 41860), (546, 38870), (598, 35490), (644, 32955), (676, 31395), (690, 30758), (780, 27209), (805, 26364), (845, 25116), (897, 23660), (910, 23322), (966, 21970), (1014, 20930), (1092, 19435), (1183, 17940), (1196, 17745), (1365, 15548), (1380, 15379), (1495, 14196), (1610, 13182), (1690, 12558), (1794, 11830), (1820, 11661), (1932, 10985), (2028, 10465), (2093, 10140), (2197, 9660), (2366, 8970), (2415, 8788), (2535, 8372), (2730, 7774), (2990, 7098), (3220, 6591), (3380, 6279), (3549, 5980), (3588, 5915), (3887, 5460), (4186, 5070), (4394, 4830), (4485, 4732)]