21688868

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{1033}}^1$

素因数の和:1247

約数の個数: 24

約数和(自身を含む): 39519480

約数和(自身を除く): 17830612

約数列:

[1, 2, 4, 29, 58, 116, 181, 362, 724, 1033, 2066, 4132, 5249, 10498, 20996, 29957, 59914, 119828, 186973, 373946, 747892, 5422217, 10844434, 21688868]

約数ペア:

[(1, 21688868), (2, 10844434), (4, 5422217), (29, 747892), (58, 373946), (116, 186973), (181, 119828), (362, 59914), (724, 29957), (1033, 20996), (2066, 10498), (4132, 5249)]