20257105

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^2$

素因数の和:265

約数の個数: 24

約数和(自身を含む): 27627264

約数和(自身を除く): 7370159

約数列:

[1, 5, 11, 31, 55, 109, 155, 341, 545, 1199, 1705, 3379, 5995, 11881, 16895, 37169, 59405, 130691, 185845, 368311, 653455, 1841555, 4051421, 20257105]

約数ペア:

[(1, 20257105), (5, 4051421), (11, 1841555), (31, 653455), (55, 368311), (109, 185845), (155, 130691), (341, 59405), (545, 37169), (1199, 16895), (1705, 11881), (3379, 5995)]