21152788

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{953}}^1$

素因数の和:1167

約数の個数: 24

約数和(自身を含む): 38465280

約数和(自身を除く): 17312492

約数列:

[1, 2, 4, 31, 62, 124, 179, 358, 716, 953, 1906, 3812, 5549, 11098, 22196, 29543, 59086, 118172, 170587, 341174, 682348, 5288197, 10576394, 21152788]

約数ペア:

[(1, 21152788), (2, 10576394), (4, 5288197), (31, 682348), (62, 341174), (124, 170587), (179, 118172), (358, 59086), (716, 29543), (953, 22196), (1906, 11098), (3812, 5549)]