19942445

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{373}}^1$

素因数の和:449

約数の個数: 24

約数和(自身を含む): 26178504

約数和(自身を除く): 6236059

約数列:

[1, 5, 17, 37, 85, 185, 289, 373, 629, 1445, 1865, 3145, 6341, 10693, 13801, 31705, 53465, 69005, 107797, 234617, 538985, 1173085, 3988489, 19942445]

約数ペア:

[(1, 19942445), (5, 3988489), (17, 1173085), (37, 538985), (85, 234617), (185, 107797), (289, 69005), (373, 53465), (629, 31705), (1445, 13801), (1865, 10693), (3145, 6341)]