21995369

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{191}}^1$

素因数の和:269

約数の個数: 24

約数和(自身を含む): 26334720

約数和(自身を除く): 4339351

約数列:

[1, 11, 19, 29, 191, 209, 319, 361, 551, 2101, 3629, 3971, 5539, 6061, 10469, 39919, 60929, 68951, 105241, 115159, 758461, 1157651, 1999579, 21995369]

約数ペア:

[(1, 21995369), (11, 1999579), (19, 1157651), (29, 758461), (191, 115159), (209, 105241), (319, 68951), (361, 60929), (551, 39919), (2101, 10469), (3629, 6061), (3971, 5539)]