31890735

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16481}}^1$

素因数の和:16535

約数の個数: 24

約数和(自身を含む): 56566224

約数和(自身を除く): 24675489

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 16481, 49443, 82405, 148329, 247215, 708683, 741645, 2126049, 3543415, 6378147, 10630245, 31890735]

約数ペア:

[(1, 31890735), (3, 10630245), (5, 6378147), (9, 3543415), (15, 2126049), (43, 741645), (45, 708683), (129, 247215), (215, 148329), (387, 82405), (645, 49443), (1935, 16481)]