13203981

素因数分解:

$3^2\times 7^2\times {\mathrm{79}}^1\times {\mathrm{379}}^1$

素因数の和:478

約数の個数: 36

約数和(自身を含む): 22526400

約数和(自身を除く): 9322419

約数列:

[1, 3, 7, 9, 21, 49, 63, 79, 147, 237, 379, 441, 553, 711, 1137, 1659, 2653, 3411, 3871, 4977, 7959, 11613, 18571, 23877, 29941, 34839, 55713, 89823, 167139, 209587, 269469, 628761, 1467109, 1886283, 4401327, 13203981]

約数ペア:

[(1, 13203981), (3, 4401327), (7, 1886283), (9, 1467109), (21, 628761), (49, 269469), (63, 209587), (79, 167139), (147, 89823), (237, 55713), (379, 34839), (441, 29941), (553, 23877), (711, 18571), (1137, 11613), (1659, 7959), (2653, 4977), (3411, 3871)]