21987316

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{10313}}^1$

素因数の和:10371

約数の個数: 24

約数和(自身を含む): 42452424

約数和(自身を除く): 20465108

約数列:

[1, 2, 4, 13, 26, 41, 52, 82, 164, 533, 1066, 2132, 10313, 20626, 41252, 134069, 268138, 422833, 536276, 845666, 1691332, 5496829, 10993658, 21987316]

約数ペア:

[(1, 21987316), (2, 10993658), (4, 5496829), (13, 1691332), (26, 845666), (41, 536276), (52, 422833), (82, 268138), (164, 134069), (533, 41252), (1066, 20626), (2132, 10313)]