18898778

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{457}}^1$

素因数の和:542

約数の個数: 32

約数和(自身を含む): 31656960

約数和(自身を除く): 12758182

約数列:

[1, 2, 23, 29, 31, 46, 58, 62, 457, 667, 713, 899, 914, 1334, 1426, 1798, 10511, 13253, 14167, 20677, 21022, 26506, 28334, 41354, 304819, 325841, 410843, 609638, 651682, 821686, 9449389, 18898778]

約数ペア:

[(1, 18898778), (2, 9449389), (23, 821686), (29, 651682), (31, 609638), (46, 410843), (58, 325841), (62, 304819), (457, 41354), (667, 28334), (713, 26506), (899, 21022), (914, 20677), (1334, 14167), (1426, 13253), (1798, 10511)]