21085645

素因数分解:

$5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{5849}}^1$

素因数の和:5964

約数の個数: 16

約数和(自身を含む): 29203200

約数和(自身を除く): 8117555

約数列:

[1, 5, 7, 35, 103, 515, 721, 3605, 5849, 29245, 40943, 204715, 602447, 3012235, 4217129, 21085645]

約数ペア:

[(1, 21085645), (5, 4217129), (7, 3012235), (35, 602447), (103, 204715), (515, 40943), (721, 29245), (3605, 5849)]