20673496

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{2141}}^1$

素因数の和:2235

約数の個数: 32

約数和(自身を含む): 41640480

約数和(自身を除く): 20966984

約数列:

[1, 2, 4, 8, 17, 34, 68, 71, 136, 142, 284, 568, 1207, 2141, 2414, 4282, 4828, 8564, 9656, 17128, 36397, 72794, 145588, 152011, 291176, 304022, 608044, 1216088, 2584187, 5168374, 10336748, 20673496]

約数ペア:

[(1, 20673496), (2, 10336748), (4, 5168374), (8, 2584187), (17, 1216088), (34, 608044), (68, 304022), (71, 291176), (136, 152011), (142, 145588), (284, 72794), (568, 36397), (1207, 17128), (2141, 9656), (2414, 8564), (4282, 4828)]