31581921

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{9341}}^1$

素因数の和:9381

約数の個数: 24

約数和(自身を含む): 51119424

約数和(自身を除く): 19537503

約数列:

[1, 3, 7, 21, 23, 49, 69, 147, 161, 483, 1127, 3381, 9341, 28023, 65387, 196161, 214843, 457709, 644529, 1373127, 1503901, 4511703, 10527307, 31581921]

約数ペア:

[(1, 31581921), (3, 10527307), (7, 4511703), (21, 1503901), (23, 1373127), (49, 644529), (69, 457709), (147, 214843), (161, 196161), (483, 65387), (1127, 28023), (3381, 9341)]