21558330

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7727}}^1$

素因数の和:7771

約数の個数: 48

約数和(自身を含む): 57867264

約数和(自身を除く): 36308934

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 155, 186, 279, 310, 465, 558, 930, 1395, 2790, 7727, 15454, 23181, 38635, 46362, 69543, 77270, 115905, 139086, 231810, 239537, 347715, 479074, 695430, 718611, 1197685, 1437222, 2155833, 2395370, 3593055, 4311666, 7186110, 10779165, 21558330]

約数ペア:

[(1, 21558330), (2, 10779165), (3, 7186110), (5, 4311666), (6, 3593055), (9, 2395370), (10, 2155833), (15, 1437222), (18, 1197685), (30, 718611), (31, 695430), (45, 479074), (62, 347715), (90, 239537), (93, 231810), (155, 139086), (186, 115905), (279, 77270), (310, 69543), (465, 46362), (558, 38635), (930, 23181), (1395, 15454), (2790, 7727)]