21485387

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{9001}}^1$

素因数の和:9050

約数の個数: 16

約数和(自身を含む): 27654144

約数和(自身を除く): 6168757

約数列:

[1, 7, 11, 31, 77, 217, 341, 2387, 9001, 63007, 99011, 279031, 693077, 1953217, 3069341, 21485387]

約数ペア:

[(1, 21485387), (7, 3069341), (11, 1953217), (31, 693077), (77, 279031), (217, 99011), (341, 63007), (2387, 9001)]