21976787

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{373}}^1\times {\mathrm{443}}^1$

素因数の和:842

約数の個数: 16

約数和(自身を含む): 26568960

約数和(自身を除く): 4592173

約数列:

[1, 7, 19, 133, 373, 443, 2611, 3101, 7087, 8417, 49609, 58919, 165239, 1156673, 3139541, 21976787]

約数ペア:

[(1, 21976787), (7, 3139541), (19, 1156673), (133, 165239), (373, 58919), (443, 49609), (2611, 8417), (3101, 7087)]