21206471630

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2633}}^1\times {\mathrm{25981}}^1$

素因数の和:28652

約数の個数: 32

約数和(自身を含む): 39419474688

約数和(自身を除く): 18213003058

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 2633, 5266, 13165, 25981, 26330, 51962, 81623, 129905, 163246, 259810, 408115, 805411, 816230, 1610822, 4027055, 8054110, 68407973, 136815946, 342039865, 684079730, 2120647163, 4241294326, 10603235815, 21206471630]

約数ペア:

[(1, 21206471630), (2, 10603235815), (5, 4241294326), (10, 2120647163), (31, 684079730), (62, 342039865), (155, 136815946), (310, 68407973), (2633, 8054110), (5266, 4027055), (13165, 1610822), (25981, 816230), (26330, 805411), (51962, 408115), (81623, 259810), (129905, 163246)]