90909987

素因数分解:

$3^1\times 7^1\times {\mathrm{1697}}^1\times {\mathrm{2551}}^1$

素因数の和:4258

約数の個数: 16

約数和(自身を含む): 138665472

約数和(自身を除く): 47755485

約数列:

[1, 3, 7, 21, 1697, 2551, 5091, 7653, 11879, 17857, 35637, 53571, 4329047, 12987141, 30303329, 90909987]

約数ペア:

[(1, 90909987), (3, 30303329), (7, 12987141), (21, 4329047), (1697, 53571), (2551, 35637), (5091, 17857), (7653, 11879)]