20018428

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{233}}^1\times {\mathrm{457}}^1$

素因数の和:741

約数の個数: 24

約数和(自身を含む): 36009792

約数和(自身を除く): 15991364

約数列:

[1, 2, 4, 47, 94, 188, 233, 457, 466, 914, 932, 1828, 10951, 21479, 21902, 42958, 43804, 85916, 106481, 212962, 425924, 5004607, 10009214, 20018428]

約数ペア:

[(1, 20018428), (2, 10009214), (4, 5004607), (47, 425924), (94, 212962), (188, 106481), (233, 85916), (457, 43804), (466, 42958), (914, 21902), (932, 21479), (1828, 10951)]