20462679

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{409}}^1$

素因数の和:544

約数の個数: 32

約数和(自身を含む): 32472000

約数和(自身を除く): 12009321

約数列:

[1, 3, 9, 17, 27, 51, 109, 153, 327, 409, 459, 981, 1227, 1853, 2943, 3681, 5559, 6953, 11043, 16677, 20859, 44581, 50031, 62577, 133743, 187731, 401229, 757877, 1203687, 2273631, 6820893, 20462679]

約数ペア:

[(1, 20462679), (3, 6820893), (9, 2273631), (17, 1203687), (27, 757877), (51, 401229), (109, 187731), (153, 133743), (327, 62577), (409, 50031), (459, 44581), (981, 20859), (1227, 16677), (1853, 11043), (2943, 6953), (3681, 5559)]