20398917

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{233}}^1\times {\mathrm{379}}^1$

素因数の和:633

約数の個数: 32

約数和(自身を含む): 34145280

約数和(自身を除く): 13746363

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 233, 379, 699, 1137, 1631, 2563, 2653, 4169, 4893, 7689, 7959, 12507, 17941, 29183, 53823, 87549, 88307, 264921, 618149, 971377, 1854447, 2914131, 6799639, 20398917]

約数ペア:

[(1, 20398917), (3, 6799639), (7, 2914131), (11, 1854447), (21, 971377), (33, 618149), (77, 264921), (231, 88307), (233, 87549), (379, 53823), (699, 29183), (1137, 17941), (1631, 12507), (2563, 7959), (2653, 7689), (4169, 4893)]