1388702907

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{631}}^1\times {\mathrm{2203}}^1$

素因数の和:2880

約数の個数: 32

約数和(自身を含む): 2117250560

約数和(自身を除く): 728547653

約数列:

[1, 3, 9, 27, 37, 111, 333, 631, 999, 1893, 2203, 5679, 6609, 17037, 19827, 23347, 59481, 70041, 81511, 210123, 244533, 630369, 733599, 1390093, 2200797, 4170279, 12510837, 37532511, 51433441, 154300323, 462900969, 1388702907]

約数ペア:

[(1, 1388702907), (3, 462900969), (9, 154300323), (27, 51433441), (37, 37532511), (111, 12510837), (333, 4170279), (631, 2200797), (999, 1390093), (1893, 733599), (2203, 630369), (5679, 244533), (6609, 210123), (17037, 81511), (19827, 70041), (23347, 59481)]