21555845

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{3163}}^1$

素因数の和:3244

約数の個数: 16

約数和(自身を含む): 27336960

約数和(自身を除く): 5781115

約数列:

[1, 5, 29, 47, 145, 235, 1363, 3163, 6815, 15815, 91727, 148661, 458635, 743305, 4311169, 21555845]

約数ペア:

[(1, 21555845), (5, 4311169), (29, 743305), (47, 458635), (145, 148661), (235, 91727), (1363, 15815), (3163, 6815)]