21152228

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{1277}}^1$

素因数の和:1423

約数の個数: 24

約数和(自身を含む): 38324664

約数和(自身を除く): 17172436

約数列:

[1, 2, 4, 41, 82, 101, 164, 202, 404, 1277, 2554, 4141, 5108, 8282, 16564, 52357, 104714, 128977, 209428, 257954, 515908, 5288057, 10576114, 21152228]

約数ペア:

[(1, 21152228), (2, 10576114), (4, 5288057), (41, 515908), (82, 257954), (101, 209428), (164, 128977), (202, 104714), (404, 52357), (1277, 16564), (2554, 8282), (4141, 5108)]