638362023

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{353}}^1\times {\mathrm{521}}^1$

素因数の和:979

約数の個数: 32

約数和(自身を含む): 931331520

約数和(自身を除く): 292969497

約数列:

[1, 3, 13, 39, 89, 267, 353, 521, 1059, 1157, 1563, 3471, 4589, 6773, 13767, 20319, 31417, 46369, 94251, 139107, 183913, 408421, 551739, 602797, 1225263, 1808391, 2390869, 7172607, 16368257, 49104771, 212787341, 638362023]

約数ペア:

[(1, 638362023), (3, 212787341), (13, 49104771), (39, 16368257), (89, 7172607), (267, 2390869), (353, 1808391), (521, 1225263), (1059, 602797), (1157, 551739), (1563, 408421), (3471, 183913), (4589, 139107), (6773, 94251), (13767, 46369), (20319, 31417)]