9939915

素因数分解:

$3^9\times 5^1\times {\mathrm{101}}^1$

素因数の和:133

約数の個数: 40

約数和(自身を含む): 18068688

約数和(自身を除く): 8128773

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 101, 135, 243, 303, 405, 505, 729, 909, 1215, 1515, 2187, 2727, 3645, 4545, 6561, 8181, 10935, 13635, 19683, 24543, 32805, 40905, 73629, 98415, 122715, 220887, 368145, 662661, 1104435, 1987983, 3313305, 9939915]

約数ペア:

[(1, 9939915), (3, 3313305), (5, 1987983), (9, 1104435), (15, 662661), (27, 368145), (45, 220887), (81, 122715), (101, 98415), (135, 73629), (243, 40905), (303, 32805), (405, 24543), (505, 19683), (729, 13635), (909, 10935), (1215, 8181), (1515, 6561), (2187, 4545), (2727, 3645)]