289363921

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{521}}^1\times {\mathrm{7213}}^1$

素因数の和:7752

約数の個数: 16

約数和(自身を含む): 361507968

約数和(自身を除く): 72144047

約数列:

[1, 7, 11, 77, 521, 3647, 5731, 7213, 40117, 50491, 79343, 555401, 3757973, 26305811, 41337703, 289363921]

約数ペア:

[(1, 289363921), (7, 41337703), (11, 26305811), (77, 3757973), (521, 555401), (3647, 79343), (5731, 50491), (7213, 40117)]