21197156

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{229}}^1\times {\mathrm{317}}^1$

素因数の和:623

約数の個数: 24

約数和(自身を含む): 37886520

約数和(自身を除く): 16689364

約数列:

[1, 2, 4, 73, 146, 229, 292, 317, 458, 634, 916, 1268, 16717, 23141, 33434, 46282, 66868, 72593, 92564, 145186, 290372, 5299289, 10598578, 21197156]

約数ペア:

[(1, 21197156), (2, 10598578), (4, 5299289), (73, 290372), (146, 145186), (229, 92564), (292, 72593), (317, 66868), (458, 46282), (634, 33434), (916, 23141), (1268, 16717)]