31090563

素因数分解:

$3^2\times 7^1\times {\mathrm{193}}^1\times {\mathrm{2557}}^1$

素因数の和:2763

約数の個数: 24

約数和(自身を含む): 51610208

約数和(自身を除く): 20519645

約数列:

[1, 3, 7, 9, 21, 63, 193, 579, 1351, 1737, 2557, 4053, 7671, 12159, 17899, 23013, 53697, 161091, 493501, 1480503, 3454507, 4441509, 10363521, 31090563]

約数ペア:

[(1, 31090563), (3, 10363521), (7, 4441509), (9, 3454507), (21, 1480503), (63, 493501), (193, 161091), (579, 53697), (1351, 23013), (1737, 17899), (2557, 12159), (4053, 7671)]