31351515

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3739}}^1$

素因数の和:3803

約数の個数: 32

約数和(自身を含む): 55292160

約数和(自身を除く): 23940645

約数列:

[1, 3, 5, 13, 15, 39, 43, 65, 129, 195, 215, 559, 645, 1677, 2795, 3739, 8385, 11217, 18695, 48607, 56085, 145821, 160777, 243035, 482331, 729105, 803885, 2090101, 2411655, 6270303, 10450505, 31351515]

約数ペア:

[(1, 31351515), (3, 10450505), (5, 6270303), (13, 2411655), (15, 2090101), (39, 803885), (43, 729105), (65, 482331), (129, 243035), (195, 160777), (215, 145821), (559, 56085), (645, 48607), (1677, 18695), (2795, 11217), (3739, 8385)]