20623928

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6397}}^1$

素因数の和:6447

約数の個数: 32

約数和(自身を含む): 42994560

約数和(自身を除く): 22370632

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 6397, 12794, 25588, 51176, 83161, 166322, 198307, 332644, 396614, 665288, 793228, 1586456, 2577991, 5155982, 10311964, 20623928]

約数ペア:

[(1, 20623928), (2, 10311964), (4, 5155982), (8, 2577991), (13, 1586456), (26, 793228), (31, 665288), (52, 396614), (62, 332644), (104, 198307), (124, 166322), (248, 83161), (403, 51176), (806, 25588), (1612, 12794), (3224, 6397)]