20391804

素因数分解:

$2^2\times 3^3\times {\mathrm{43}}^1\times {\mathrm{4391}}^1$

素因数の和:4447

約数の個数: 48

約数和(自身を含む): 54109440

約数和(自身を除く): 33717636

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 43, 54, 86, 108, 129, 172, 258, 387, 516, 774, 1161, 1548, 2322, 4391, 4644, 8782, 13173, 17564, 26346, 39519, 52692, 79038, 118557, 158076, 188813, 237114, 377626, 474228, 566439, 755252, 1132878, 1699317, 2265756, 3398634, 5097951, 6797268, 10195902, 20391804]

約数ペア:

[(1, 20391804), (2, 10195902), (3, 6797268), (4, 5097951), (6, 3398634), (9, 2265756), (12, 1699317), (18, 1132878), (27, 755252), (36, 566439), (43, 474228), (54, 377626), (86, 237114), (108, 188813), (129, 158076), (172, 118557), (258, 79038), (387, 52692), (516, 39519), (774, 26346), (1161, 17564), (1548, 13173), (2322, 8782), (4391, 4644)]