20673848

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{1451}}^1$

素因数の和:1607

約数の個数: 32

約数和(自身を含む): 42078960

約数和(自身を除く): 21405112

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 137, 274, 548, 1096, 1451, 1781, 2902, 3562, 5804, 7124, 11608, 14248, 18863, 37726, 75452, 150904, 198787, 397574, 795148, 1590296, 2584231, 5168462, 10336924, 20673848]

約数ペア:

[(1, 20673848), (2, 10336924), (4, 5168462), (8, 2584231), (13, 1590296), (26, 795148), (52, 397574), (104, 198787), (137, 150904), (274, 75452), (548, 37726), (1096, 18863), (1451, 14248), (1781, 11608), (2902, 7124), (3562, 5804)]