21289190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{5647}}^1$

素因数の和:5696

約数の個数: 32

約数和(自身を含む): 42698880

約数和(自身を除く): 21409690

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 130, 145, 290, 377, 754, 1885, 3770, 5647, 11294, 28235, 56470, 73411, 146822, 163763, 327526, 367055, 734110, 818815, 1637630, 2128919, 4257838, 10644595, 21289190]

約数ペア:

[(1, 21289190), (2, 10644595), (5, 4257838), (10, 2128919), (13, 1637630), (26, 818815), (29, 734110), (58, 367055), (65, 327526), (130, 163763), (145, 146822), (290, 73411), (377, 56470), (754, 28235), (1885, 11294), (3770, 5647)]