21167950

素因数分解:

$2^1\times 5^2\times {\mathrm{181}}^1\times {\mathrm{2339}}^1$

素因数の和:2532

約数の個数: 24

約数和(自身を含む): 39606840

約数和(自身を除く): 18438890

約数列:

[1, 2, 5, 10, 25, 50, 181, 362, 905, 1810, 2339, 4525, 4678, 9050, 11695, 23390, 58475, 116950, 423359, 846718, 2116795, 4233590, 10583975, 21167950]

約数ペア:

[(1, 21167950), (2, 10583975), (5, 4233590), (10, 2116795), (25, 846718), (50, 423359), (181, 116950), (362, 58475), (905, 23390), (1810, 11695), (2339, 9050), (4525, 4678)]