21124740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:158

約数の個数: 192

約数和(自身を含む): 75188736

約数和(自身を除く): 54063996

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 53, 60, 65, 70, 73, 78, 84, 91, 105, 106, 130, 140, 146, 156, 159, 182, 195, 210, 212, 219, 260, 265, 273, 292, 318, 364, 365, 371, 390, 420, 438, 455, 511, 530, 546, 636, 689, 730, 742, 780, 795, 876, 910, 949, 1022, 1060, 1092, 1095, 1113, 1365, 1378, 1460, 1484, 1533, 1590, 1820, 1855, 1898, 2044, 2067, 2190, 2226, 2555, 2730, 2756, 2847, 3066, 3180, 3445, 3710, 3796, 3869, 4134, 4380, 4452, 4745, 4823, 5110, 5460, 5565, 5694, 6132, 6643, 6890, 7420, 7665, 7738, 8268, 9490, 9646, 10220, 10335, 11130, 11388, 11607, 13286, 13780, 14235, 14469, 15330, 15476, 18980, 19292, 19345, 19929, 20670, 22260, 23214, 24115, 26572, 27083, 28470, 28938, 30660, 33215, 38690, 39858, 41340, 46428, 48230, 50297, 54166, 56940, 57876, 58035, 66430, 72345, 77380, 79716, 81249, 96460, 99645, 100594, 108332, 116070, 132860, 135415, 144690, 150891, 162498, 199290, 201188, 232140, 251485, 270830, 289380, 301782, 324996, 352079, 398580, 406245, 502970, 541660, 603564, 704158, 754455, 812490, 1005940, 1056237, 1408316, 1508910, 1624980, 1760395, 2112474, 3017820, 3520790, 4224948, 5281185, 7041580, 10562370, 21124740]

約数ペア:

[(1, 21124740), (2, 10562370), (3, 7041580), (4, 5281185), (5, 4224948), (6, 3520790), (7, 3017820), (10, 2112474), (12, 1760395), (13, 1624980), (14, 1508910), (15, 1408316), (20, 1056237), (21, 1005940), (26, 812490), (28, 754455), (30, 704158), (35, 603564), (39, 541660), (42, 502970), (52, 406245), (53, 398580), (60, 352079), (65, 324996), (70, 301782), (73, 289380), (78, 270830), (84, 251485), (91, 232140), (105, 201188), (106, 199290), (130, 162498), (140, 150891), (146, 144690), (156, 135415), (159, 132860), (182, 116070), (195, 108332), (210, 100594), (212, 99645), (219, 96460), (260, 81249), (265, 79716), (273, 77380), (292, 72345), (318, 66430), (364, 58035), (365, 57876), (371, 56940), (390, 54166), (420, 50297), (438, 48230), (455, 46428), (511, 41340), (530, 39858), (546, 38690), (636, 33215), (689, 30660), (730, 28938), (742, 28470), (780, 27083), (795, 26572), (876, 24115), (910, 23214), (949, 22260), (1022, 20670), (1060, 19929), (1092, 19345), (1095, 19292), (1113, 18980), (1365, 15476), (1378, 15330), (1460, 14469), (1484, 14235), (1533, 13780), (1590, 13286), (1820, 11607), (1855, 11388), (1898, 11130), (2044, 10335), (2067, 10220), (2190, 9646), (2226, 9490), (2555, 8268), (2730, 7738), (2756, 7665), (2847, 7420), (3066, 6890), (3180, 6643), (3445, 6132), (3710, 5694), (3796, 5565), (3869, 5460), (4134, 5110), (4380, 4823), (4452, 4745)]