21000772792

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{13681}}^1\times {\mathrm{11287}}^1$

素因数の和:24991

約数の個数: 32

約数和(自身を含む): 41699452320

約数和(自身を除く): 20698679528

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 11287, 13681, 22574, 27362, 45148, 54724, 90296, 109448, 191879, 232577, 383758, 465154, 767516, 930308, 1535032, 1860616, 154417447, 308834894, 617669788, 1235339576, 2625096599, 5250193198, 10500386396, 21000772792]

約数ペア:

[(1, 21000772792), (2, 10500386396), (4, 5250193198), (8, 2625096599), (17, 1235339576), (34, 617669788), (68, 308834894), (136, 154417447), (11287, 1860616), (13681, 1535032), (22574, 930308), (27362, 767516), (45148, 465154), (54724, 383758), (90296, 232577), (109448, 191879)]