20671924

素因数分解:

$2^2\times 7^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1$

素因数の和:118

約数の個数: 96

約数和(自身を含む): 48608000

約数和(自身を除く): 27936076

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 38, 49, 52, 61, 76, 91, 98, 122, 133, 182, 196, 244, 247, 266, 343, 364, 427, 494, 532, 637, 686, 793, 854, 931, 988, 1159, 1274, 1372, 1586, 1708, 1729, 1862, 2318, 2548, 2989, 3172, 3458, 3724, 4459, 4636, 5551, 5978, 6517, 6916, 8113, 8918, 11102, 11956, 12103, 13034, 15067, 16226, 17836, 20923, 22204, 24206, 26068, 30134, 32452, 38857, 41846, 48412, 56791, 60268, 77714, 83692, 84721, 105469, 113582, 155428, 169442, 210938, 227164, 271999, 338884, 397537, 421876, 543998, 738283, 795074, 1087996, 1476566, 1590148, 2953132, 5167981, 10335962, 20671924]

約数ペア:

[(1, 20671924), (2, 10335962), (4, 5167981), (7, 2953132), (13, 1590148), (14, 1476566), (19, 1087996), (26, 795074), (28, 738283), (38, 543998), (49, 421876), (52, 397537), (61, 338884), (76, 271999), (91, 227164), (98, 210938), (122, 169442), (133, 155428), (182, 113582), (196, 105469), (244, 84721), (247, 83692), (266, 77714), (343, 60268), (364, 56791), (427, 48412), (494, 41846), (532, 38857), (637, 32452), (686, 30134), (793, 26068), (854, 24206), (931, 22204), (988, 20923), (1159, 17836), (1274, 16226), (1372, 15067), (1586, 13034), (1708, 12103), (1729, 11956), (1862, 11102), (2318, 8918), (2548, 8113), (2989, 6916), (3172, 6517), (3458, 5978), (3724, 5551), (4459, 4636)]