20454237

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{313}}^1$

素因数の和:509

約数の個数: 24

約数和(自身を含む): 30419064

約数和(自身を除く): 9964827

約数列:

[1, 3, 9, 53, 137, 159, 313, 411, 477, 939, 1233, 2817, 7261, 16589, 21783, 42881, 49767, 65349, 128643, 149301, 385929, 2272693, 6818079, 20454237]

約数ペア:

[(1, 20454237), (3, 6818079), (9, 2272693), (53, 385929), (137, 149301), (159, 128643), (313, 65349), (411, 49767), (477, 42881), (939, 21783), (1233, 16589), (2817, 7261)]