20575005

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6563}}^1$

素因数の和:6601

約数の個数: 32

約数和(自身を含む): 37808640

約数和(自身を除く): 17233635

約数列:

[1, 3, 5, 11, 15, 19, 33, 55, 57, 95, 165, 209, 285, 627, 1045, 3135, 6563, 19689, 32815, 72193, 98445, 124697, 216579, 360965, 374091, 623485, 1082895, 1371667, 1870455, 4115001, 6858335, 20575005]

約数ペア:

[(1, 20575005), (3, 6858335), (5, 4115001), (11, 1870455), (15, 1371667), (19, 1082895), (33, 623485), (55, 374091), (57, 360965), (95, 216579), (165, 124697), (209, 98445), (285, 72193), (627, 32815), (1045, 19689), (3135, 6563)]