21974071

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{773}}^1$

素因数の和:942

約数の個数: 16

約数和(自身を含む): 26155008

約数和(自身を除く): 4180937

約数列:

[1, 7, 31, 131, 217, 773, 917, 4061, 5411, 23963, 28427, 101263, 167741, 708841, 3139153, 21974071]

約数ペア:

[(1, 21974071), (7, 3139153), (31, 708841), (131, 167741), (217, 101263), (773, 28427), (917, 23963), (4061, 5411)]