20664532

素因数分解:

$2^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{5387}}^1$

素因数の和:5535

約数の個数: 24

約数和(自身を含む): 41638464

約数和(自身を除く): 20973932

約数列:

[1, 2, 4, 7, 14, 28, 137, 274, 548, 959, 1918, 3836, 5387, 10774, 21548, 37709, 75418, 150836, 738019, 1476038, 2952076, 5166133, 10332266, 20664532]

約数ペア:

[(1, 20664532), (2, 10332266), (4, 5166133), (7, 2952076), (14, 1476038), (28, 738019), (137, 150836), (274, 75418), (548, 37709), (959, 21548), (1918, 10774), (3836, 5387)]