20809902038

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{1789}}^1\times {\mathrm{16111}}^1$

素因数の和:17940

約数の個数: 24

約数和(自身を含む): 32964668640

約数和(自身を除く): 12154766602

約数列:

[1, 2, 19, 38, 361, 722, 1789, 3578, 16111, 32222, 33991, 67982, 306109, 612218, 645829, 1291658, 5816071, 11632142, 28822579, 57645158, 547629001, 1095258002, 10404951019, 20809902038]

約数ペア:

[(1, 20809902038), (2, 10404951019), (19, 1095258002), (38, 547629001), (361, 57645158), (722, 28822579), (1789, 11632142), (3578, 5816071), (16111, 1291658), (32222, 645829), (33991, 612218), (67982, 306109)]