21852915

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2851}}^1$

素因数の和:2939

約数の個数: 32

約数和(自身を含む): 40521216

約数和(自身を除く): 18668301

約数列:

[1, 3, 5, 7, 15, 21, 35, 73, 105, 219, 365, 511, 1095, 1533, 2555, 2851, 7665, 8553, 14255, 19957, 42765, 59871, 99785, 208123, 299355, 624369, 1040615, 1456861, 3121845, 4370583, 7284305, 21852915]

約数ペア:

[(1, 21852915), (3, 7284305), (5, 4370583), (7, 3121845), (15, 1456861), (21, 1040615), (35, 624369), (73, 299355), (105, 208123), (219, 99785), (365, 59871), (511, 42765), (1095, 19957), (1533, 14255), (2555, 8553), (2851, 7665)]