21849164

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{15131}}^1$

素因数の和:15173

約数の個数: 18

約数和(自身を含む): 40357044

約数和(自身を除く): 18507880

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 15131, 30262, 60524, 287489, 574978, 1149956, 5462291, 10924582, 21849164]

約数ペア:

[(1, 21849164), (2, 10924582), (4, 5462291), (19, 1149956), (38, 574978), (76, 287489), (361, 60524), (722, 30262), (1444, 15131)]