21958917

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{9161}}^1$

素因数の和:9228

約数の個数: 16

約数和(自身を含む): 31663872

約数和(自身を除く): 9704955

約数列:

[1, 3, 17, 47, 51, 141, 799, 2397, 9161, 27483, 155737, 430567, 467211, 1291701, 7319639, 21958917]

約数ペア:

[(1, 21958917), (3, 7319639), (17, 1291701), (47, 467211), (51, 430567), (141, 155737), (799, 27483), (2397, 9161)]