21000377076

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{499}}^1\times {\mathrm{3767}}^1$

素因数の和:4306

約数の個数: 144

約数和(自身を含む): 60137280000

約数和(自身を除く): 39136902924

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 38, 42, 49, 57, 76, 84, 98, 114, 133, 147, 196, 228, 266, 294, 399, 499, 532, 588, 798, 931, 998, 1497, 1596, 1862, 1996, 2793, 2994, 3493, 3724, 3767, 5586, 5988, 6986, 7534, 9481, 10479, 11172, 11301, 13972, 15068, 18962, 20958, 22602, 24451, 26369, 28443, 37924, 41916, 45204, 48902, 52738, 56886, 66367, 71573, 73353, 79107, 97804, 105476, 113772, 132734, 143146, 146706, 158214, 184583, 199101, 214719, 265468, 286292, 293412, 316428, 369166, 398202, 429438, 464569, 501011, 553749, 738332, 796404, 858876, 929138, 1002022, 1107498, 1393707, 1503033, 1858276, 1879733, 2004044, 2214996, 2787414, 3006066, 3507077, 3759466, 5574828, 5639199, 6012132, 7014154, 7518932, 10521231, 11278398, 13158131, 14028308, 21042462, 22556796, 26316262, 35714927, 39474393, 42084924, 52632524, 71429854, 78948786, 92106917, 107144781, 142859708, 157897572, 184213834, 214289562, 250004489, 276320751, 368427668, 428579124, 500008978, 552641502, 750013467, 1000017956, 1105283004, 1500026934, 1750031423, 3000053868, 3500062846, 5250094269, 7000125692, 10500188538, 21000377076]

約数ペア:

[(1, 21000377076), (2, 10500188538), (3, 7000125692), (4, 5250094269), (6, 3500062846), (7, 3000053868), (12, 1750031423), (14, 1500026934), (19, 1105283004), (21, 1000017956), (28, 750013467), (38, 552641502), (42, 500008978), (49, 428579124), (57, 368427668), (76, 276320751), (84, 250004489), (98, 214289562), (114, 184213834), (133, 157897572), (147, 142859708), (196, 107144781), (228, 92106917), (266, 78948786), (294, 71429854), (399, 52632524), (499, 42084924), (532, 39474393), (588, 35714927), (798, 26316262), (931, 22556796), (998, 21042462), (1497, 14028308), (1596, 13158131), (1862, 11278398), (1996, 10521231), (2793, 7518932), (2994, 7014154), (3493, 6012132), (3724, 5639199), (3767, 5574828), (5586, 3759466), (5988, 3507077), (6986, 3006066), (7534, 2787414), (9481, 2214996), (10479, 2004044), (11172, 1879733), (11301, 1858276), (13972, 1503033), (15068, 1393707), (18962, 1107498), (20958, 1002022), (22602, 929138), (24451, 858876), (26369, 796404), (28443, 738332), (37924, 553749), (41916, 501011), (45204, 464569), (48902, 429438), (52738, 398202), (56886, 369166), (66367, 316428), (71573, 293412), (73353, 286292), (79107, 265468), (97804, 214719), (105476, 199101), (113772, 184583), (132734, 158214), (143146, 146706)]