21538504

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2837}}^1$

素因数の和:2929

約数の個数: 32

約数和(自身を含む): 44102520

約数和(自身を除く): 22564016

約数列:

[1, 2, 4, 8, 13, 26, 52, 73, 104, 146, 292, 584, 949, 1898, 2837, 3796, 5674, 7592, 11348, 22696, 36881, 73762, 147524, 207101, 295048, 414202, 828404, 1656808, 2692313, 5384626, 10769252, 21538504]

約数ペア:

[(1, 21538504), (2, 10769252), (4, 5384626), (8, 2692313), (13, 1656808), (26, 828404), (52, 414202), (73, 295048), (104, 207101), (146, 147524), (292, 73762), (584, 36881), (949, 22696), (1898, 11348), (2837, 7592), (3796, 5674)]