31089645

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16067}}^1$

素因数の和:16121

約数の個数: 24

約数和(自身を含む): 55145376

約数和(自身を除く): 24055731

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 16067, 48201, 80335, 144603, 241005, 690881, 723015, 2072643, 3454405, 6217929, 10363215, 31089645]

約数ペア:

[(1, 31089645), (3, 10363215), (5, 6217929), (9, 3454405), (15, 2072643), (43, 723015), (45, 690881), (129, 241005), (215, 144603), (387, 80335), (645, 48201), (1935, 16067)]