20659037

素因数分解:

$7^2\times {\mathrm{23}}^2\times {\mathrm{797}}^1$

素因数の和:857

約数の個数: 18

約数和(自身を含む): 25153758

約数和(自身を除く): 4494721

約数列:

[1, 7, 23, 49, 161, 529, 797, 1127, 3703, 5579, 18331, 25921, 39053, 128317, 421613, 898219, 2951291, 20659037]

約数ペア:

[(1, 20659037), (7, 2951291), (23, 898219), (49, 421613), (161, 128317), (529, 39053), (797, 25921), (1127, 18331), (3703, 5579)]