21167045

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{1231}}^1$

素因数の和:1436

約数の個数: 16

約数和(自身を含む): 26906880

約数和(自身を除く): 5739835

約数列:

[1, 5, 19, 95, 181, 905, 1231, 3439, 6155, 17195, 23389, 116945, 222811, 1114055, 4233409, 21167045]

約数ペア:

[(1, 21167045), (5, 4233409), (19, 1114055), (95, 222811), (181, 116945), (905, 23389), (1231, 17195), (3439, 6155)]