21999416

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{1433}}^1$

素因数の和:1559

約数の個数: 32

約数和(自身を含む): 43880400

約数和(自身を除く): 21880984

約数列:

[1, 2, 4, 8, 19, 38, 76, 101, 152, 202, 404, 808, 1433, 1919, 2866, 3838, 5732, 7676, 11464, 15352, 27227, 54454, 108908, 144733, 217816, 289466, 578932, 1157864, 2749927, 5499854, 10999708, 21999416]

約数ペア:

[(1, 21999416), (2, 10999708), (4, 5499854), (8, 2749927), (19, 1157864), (38, 578932), (76, 289466), (101, 217816), (152, 144733), (202, 108908), (404, 54454), (808, 27227), (1433, 15352), (1919, 11464), (2866, 7676), (3838, 5732)]