31991445

素因数分解:

$3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{8999}}^1$

素因数の和:9089

約数の個数: 24

約数和(自身を含む): 56160000

約数和(自身を除く): 24168555

約数列:

[1, 3, 5, 9, 15, 45, 79, 237, 395, 711, 1185, 3555, 8999, 26997, 44995, 80991, 134985, 404955, 710921, 2132763, 3554605, 6398289, 10663815, 31991445]

約数ペア:

[(1, 31991445), (3, 10663815), (5, 6398289), (9, 3554605), (15, 2132763), (45, 710921), (79, 404955), (237, 134985), (395, 80991), (711, 44995), (1185, 26997), (3555, 8999)]