21901216

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{16693}}^1$

素因数の和:16744

約数の個数: 24

約数和(自身を含む): 44172324

約数和(自身を除く): 22271108

約数列:

[1, 2, 4, 8, 16, 32, 41, 82, 164, 328, 656, 1312, 16693, 33386, 66772, 133544, 267088, 534176, 684413, 1368826, 2737652, 5475304, 10950608, 21901216]

約数ペア:

[(1, 21901216), (2, 10950608), (4, 5475304), (8, 2737652), (16, 1368826), (32, 684413), (41, 534176), (82, 267088), (164, 133544), (328, 66772), (656, 33386), (1312, 16693)]