21917286

素因数分解:

$2^1\times 3^2\times {\mathrm{79}}^1\times {\mathrm{15413}}^1$

素因数の和:15500

約数の個数: 24

約数和(自身を含む): 48091680

約数和(自身を除く): 26174394

約数列:

[1, 2, 3, 6, 9, 18, 79, 158, 237, 474, 711, 1422, 15413, 30826, 46239, 92478, 138717, 277434, 1217627, 2435254, 3652881, 7305762, 10958643, 21917286]

約数ペア:

[(1, 21917286), (2, 10958643), (3, 7305762), (6, 3652881), (9, 2435254), (18, 1217627), (79, 277434), (158, 138717), (237, 92478), (474, 46239), (711, 30826), (1422, 15413)]