19955816

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{1201}}^1$

素因数の和:1305

約数の個数: 32

約数和(自身を含む): 39233280

約数和(自身を除く): 19277464

約数列:

[1, 2, 4, 8, 31, 62, 67, 124, 134, 248, 268, 536, 1201, 2077, 2402, 4154, 4804, 8308, 9608, 16616, 37231, 74462, 80467, 148924, 160934, 297848, 321868, 643736, 2494477, 4988954, 9977908, 19955816]

約数ペア:

[(1, 19955816), (2, 9977908), (4, 4988954), (8, 2494477), (31, 643736), (62, 321868), (67, 297848), (124, 160934), (134, 148924), (248, 80467), (268, 74462), (536, 37231), (1201, 16616), (2077, 9608), (2402, 8308), (4154, 4804)]