20437445

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{421}}^1$

素因数の和:525

約数の個数: 32

約数和(自身を含む): 29978880

約数和(自身を除く): 9541435

約数列:

[1, 5, 7, 19, 35, 73, 95, 133, 365, 421, 511, 665, 1387, 2105, 2555, 2947, 6935, 7999, 9709, 14735, 30733, 39995, 48545, 55993, 153665, 215131, 279965, 583927, 1075655, 2919635, 4087489, 20437445]

約数ペア:

[(1, 20437445), (5, 4087489), (7, 2919635), (19, 1075655), (35, 583927), (73, 279965), (95, 215131), (133, 153665), (365, 55993), (421, 48545), (511, 39995), (665, 30733), (1387, 14735), (2105, 9709), (2555, 7999), (2947, 6935)]