21393183

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53617}}^1$

素因数の和:53646

約数の個数: 16

約数和(自身を含む): 34315520

約数和(自身を除く): 12922337

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 53617, 160851, 375319, 1018723, 1125957, 3056169, 7131061, 21393183]

約数ペア:

[(1, 21393183), (3, 7131061), (7, 3056169), (19, 1125957), (21, 1018723), (57, 375319), (133, 160851), (399, 53617)]