21374990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{283}}^1$

素因数の和:393

約数の個数: 64

約数和(自身を含む): 48093696

約数和(自身を除く): 26718706

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 83, 91, 130, 166, 182, 283, 415, 455, 566, 581, 830, 910, 1079, 1162, 1415, 1981, 2158, 2830, 2905, 3679, 3962, 5395, 5810, 7358, 7553, 9905, 10790, 15106, 18395, 19810, 23489, 25753, 36790, 37765, 46978, 51506, 75530, 117445, 128765, 164423, 234890, 257530, 305357, 328846, 610714, 822115, 1526785, 1644230, 2137499, 3053570, 4274998, 10687495, 21374990]

約数ペア:

[(1, 21374990), (2, 10687495), (5, 4274998), (7, 3053570), (10, 2137499), (13, 1644230), (14, 1526785), (26, 822115), (35, 610714), (65, 328846), (70, 305357), (83, 257530), (91, 234890), (130, 164423), (166, 128765), (182, 117445), (283, 75530), (415, 51506), (455, 46978), (566, 37765), (581, 36790), (830, 25753), (910, 23489), (1079, 19810), (1162, 18395), (1415, 15106), (1981, 10790), (2158, 9905), (2830, 7553), (2905, 7358), (3679, 5810), (3962, 5395)]