20031765

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2389}}^1$

素因数の和:2453

約数の個数: 32

約数和(自身を含む): 35333760

約数和(自身を除く): 15301995

約数列:

[1, 3, 5, 13, 15, 39, 43, 65, 129, 195, 215, 559, 645, 1677, 2389, 2795, 7167, 8385, 11945, 31057, 35835, 93171, 102727, 155285, 308181, 465855, 513635, 1335451, 1540905, 4006353, 6677255, 20031765]

約数ペア:

[(1, 20031765), (3, 6677255), (5, 4006353), (13, 1540905), (15, 1335451), (39, 513635), (43, 465855), (65, 308181), (129, 155285), (195, 102727), (215, 93171), (559, 35835), (645, 31057), (1677, 11945), (2389, 8385), (2795, 7167)]