21996019

素因数分解:

${\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{151}}^1$

素因数の和:346

約数の個数: 16

約数和(自身を含む): 23658496

約数和(自身を除く): 1662477

約数列:

[1, 31, 37, 127, 151, 1147, 3937, 4681, 4699, 5587, 19177, 145669, 173197, 594487, 709549, 21996019]

約数ペア:

[(1, 21996019), (31, 709549), (37, 594487), (127, 173197), (151, 145669), (1147, 19177), (3937, 5587), (4681, 4699)]