31281327

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{45139}}^1$

素因数の和:45163

約数の個数: 24

約数和(自身を含む): 56334720

約数和(自身を除く): 25053393

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 45139, 135417, 315973, 406251, 496529, 947919, 1489587, 2843757, 3475703, 4468761, 10427109, 31281327]

約数ペア:

[(1, 31281327), (3, 10427109), (7, 4468761), (9, 3475703), (11, 2843757), (21, 1489587), (33, 947919), (63, 496529), (77, 406251), (99, 315973), (231, 135417), (693, 45139)]