18986822

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{331}}^1$

素因数の和:428

約数の個数: 32

約数和(自身を含む): 31553280

約数和(自身を除く): 12566458

約数列:

[1, 2, 23, 29, 43, 46, 58, 86, 331, 662, 667, 989, 1247, 1334, 1978, 2494, 7613, 9599, 14233, 15226, 19198, 28466, 28681, 57362, 220777, 327359, 412757, 441554, 654718, 825514, 9493411, 18986822]

約数ペア:

[(1, 18986822), (2, 9493411), (23, 825514), (29, 654718), (43, 441554), (46, 412757), (58, 327359), (86, 220777), (331, 57362), (662, 28681), (667, 28466), (989, 19198), (1247, 15226), (1334, 14233), (1978, 9599), (2494, 7613)]