20912635

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{563}}^1$

素因数の和:627

約数の個数: 32

約数和(自身を含む): 29237760

約数和(自身を除く): 8325125

約数列:

[1, 5, 17, 19, 23, 85, 95, 115, 323, 391, 437, 563, 1615, 1955, 2185, 2815, 7429, 9571, 10697, 12949, 37145, 47855, 53485, 64745, 181849, 220133, 246031, 909245, 1100665, 1230155, 4182527, 20912635]

約数ペア:

[(1, 20912635), (5, 4182527), (17, 1230155), (19, 1100665), (23, 909245), (85, 246031), (95, 220133), (115, 181849), (323, 64745), (391, 53485), (437, 47855), (563, 37145), (1615, 12949), (1955, 10697), (2185, 9571), (2815, 7429)]