20976470

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{757}}^1$

素因数の和:944

約数の個数: 32

約数和(自身を含む): 40277088

約数和(自身を除く): 19300618

約数列:

[1, 2, 5, 10, 17, 34, 85, 163, 170, 326, 757, 815, 1514, 1630, 2771, 3785, 5542, 7570, 12869, 13855, 25738, 27710, 64345, 123391, 128690, 246782, 616955, 1233910, 2097647, 4195294, 10488235, 20976470]

約数ペア:

[(1, 20976470), (2, 10488235), (5, 4195294), (10, 2097647), (17, 1233910), (34, 616955), (85, 246782), (163, 128690), (170, 123391), (326, 64345), (757, 27710), (815, 25738), (1514, 13855), (1630, 12869), (2771, 7570), (3785, 5542)]