21968456

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{66977}}^1$

素因数の和:67024

約数の個数: 16

約数和(自身を含む): 42196140

約数和(自身を除く): 20227684

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 66977, 133954, 267908, 535816, 2746057, 5492114, 10984228, 21968456]

約数ペア:

[(1, 21968456), (2, 10984228), (4, 5492114), (8, 2746057), (41, 535816), (82, 267908), (164, 133954), (328, 66977)]