21585957

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{8807}}^1$

素因数の和:8872

約数の個数: 16

約数和(自身を含む): 31004160

約数和(自身を除く): 9418203

約数列:

[1, 3, 19, 43, 57, 129, 817, 2451, 8807, 26421, 167333, 378701, 501999, 1136103, 7195319, 21585957]

約数ペア:

[(1, 21585957), (3, 7195319), (19, 1136103), (43, 501999), (57, 378701), (129, 167333), (817, 26421), (2451, 8807)]