21000299032

素因数分解:

$2^3\times {\mathrm{139}}^1\times {\mathrm{1109}}^1\times {\mathrm{17029}}^1$

素因数の和:18283

約数の個数: 32

約数和(自身を含む): 39696930000

約数和(自身を除く): 18696630968

約数列:

[1, 2, 4, 8, 139, 278, 556, 1109, 1112, 2218, 4436, 8872, 17029, 34058, 68116, 136232, 154151, 308302, 616604, 1233208, 2367031, 4734062, 9468124, 18885161, 18936248, 37770322, 75540644, 151081288, 2625037379, 5250074758, 10500149516, 21000299032]

約数ペア:

[(1, 21000299032), (2, 10500149516), (4, 5250074758), (8, 2625037379), (139, 151081288), (278, 75540644), (556, 37770322), (1109, 18936248), (1112, 18885161), (2218, 9468124), (4436, 4734062), (8872, 2367031), (17029, 1233208), (34058, 616604), (68116, 308302), (136232, 154151)]