20985642

素因数分解:

$2^1\times 3^4\times {\mathrm{281}}^1\times {\mathrm{461}}^1$

素因数の和:756

約数の個数: 40

約数和(自身を含む): 47293092

約数和(自身を除く): 26307450

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 281, 461, 562, 843, 922, 1383, 1686, 2529, 2766, 4149, 5058, 7587, 8298, 12447, 15174, 22761, 24894, 37341, 45522, 74682, 129541, 259082, 388623, 777246, 1165869, 2331738, 3497607, 6995214, 10492821, 20985642]

約数ペア:

[(1, 20985642), (2, 10492821), (3, 6995214), (6, 3497607), (9, 2331738), (18, 1165869), (27, 777246), (54, 388623), (81, 259082), (162, 129541), (281, 74682), (461, 45522), (562, 37341), (843, 24894), (922, 22761), (1383, 15174), (1686, 12447), (2529, 8298), (2766, 7587), (4149, 5058)]