18623988

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{227}}^1$

素因数の和:333

約数の個数: 72

約数和(自身を含む): 49297248

約数和(自身を除く): 30673260

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 53, 86, 106, 129, 159, 172, 212, 227, 258, 318, 387, 454, 477, 516, 636, 681, 774, 908, 954, 1362, 1548, 1908, 2043, 2279, 2724, 4086, 4558, 6837, 8172, 9116, 9761, 12031, 13674, 19522, 20511, 24062, 27348, 29283, 36093, 39044, 41022, 48124, 58566, 72186, 82044, 87849, 108279, 117132, 144372, 175698, 216558, 351396, 433116, 517333, 1034666, 1551999, 2069332, 3103998, 4655997, 6207996, 9311994, 18623988]

約数ペア:

[(1, 18623988), (2, 9311994), (3, 6207996), (4, 4655997), (6, 3103998), (9, 2069332), (12, 1551999), (18, 1034666), (36, 517333), (43, 433116), (53, 351396), (86, 216558), (106, 175698), (129, 144372), (159, 117132), (172, 108279), (212, 87849), (227, 82044), (258, 72186), (318, 58566), (387, 48124), (454, 41022), (477, 39044), (516, 36093), (636, 29283), (681, 27348), (774, 24062), (908, 20511), (954, 19522), (1362, 13674), (1548, 12031), (1908, 9761), (2043, 9116), (2279, 8172), (2724, 6837), (4086, 4558)]