21000421424

素因数分解:

$2^4\times {\mathrm{41453}}^1\times {\mathrm{31663}}^1$

素因数の和:73124

約数の個数: 20

約数和(自身を含む): 40690583136

約数和(自身を除く): 19690161712

約数列:

[1, 2, 4, 8, 16, 31663, 41453, 63326, 82906, 126652, 165812, 253304, 331624, 506608, 663248, 1312526339, 2625052678, 5250105356, 10500210712, 21000421424]

約数ペア:

[(1, 21000421424), (2, 10500210712), (4, 5250105356), (8, 2625052678), (16, 1312526339), (31663, 663248), (41453, 506608), (63326, 331624), (82906, 253304), (126652, 165812)]