28920861

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{317}}^1$

素因数の和:466

約数の個数: 32

約数和(自身を含む): 44774400

約数和(自身を除く): 15853539

約数列:

[1, 3, 9, 27, 31, 93, 109, 279, 317, 327, 837, 951, 981, 2853, 2943, 3379, 8559, 9827, 10137, 29481, 30411, 34553, 88443, 91233, 103659, 265329, 310977, 932931, 1071143, 3213429, 9640287, 28920861]

約数ペア:

[(1, 28920861), (3, 9640287), (9, 3213429), (27, 1071143), (31, 932931), (93, 310977), (109, 265329), (279, 103659), (317, 91233), (327, 88443), (837, 34553), (951, 30411), (981, 29481), (2853, 10137), (2943, 9827), (3379, 8559)]