21565638

素因数分解:

$2^1\times 3^2\times {\mathrm{271}}^1\times {\mathrm{4421}}^1$

素因数の和:4700

約数の個数: 24

約数和(自身を含む): 46908576

約数和(自身を除く): 25342938

約数列:

[1, 2, 3, 6, 9, 18, 271, 542, 813, 1626, 2439, 4421, 4878, 8842, 13263, 26526, 39789, 79578, 1198091, 2396182, 3594273, 7188546, 10782819, 21565638]

約数ペア:

[(1, 21565638), (2, 10782819), (3, 7188546), (6, 3594273), (9, 2396182), (18, 1198091), (271, 79578), (542, 39789), (813, 26526), (1626, 13263), (2439, 8842), (4421, 4878)]