20138727

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2969}}^1$

素因数の和:3015

約数の個数: 32

約数和(自身を含む): 34214400

約数和(自身を除く): 14075673

約数列:

[1, 3, 7, 17, 19, 21, 51, 57, 119, 133, 323, 357, 399, 969, 2261, 2969, 6783, 8907, 20783, 50473, 56411, 62349, 151419, 169233, 353311, 394877, 958987, 1059933, 1184631, 2876961, 6712909, 20138727]

約数ペア:

[(1, 20138727), (3, 6712909), (7, 2876961), (17, 1184631), (19, 1059933), (21, 958987), (51, 394877), (57, 353311), (119, 169233), (133, 151419), (323, 62349), (357, 56411), (399, 50473), (969, 20783), (2261, 8907), (2969, 6783)]