21949995

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{34031}}^1$

素因数の和:34082

約数の個数: 16

約数和(自身を含む): 35937792

約数和(自身を除く): 13987797

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 34031, 102093, 170155, 510465, 1463333, 4389999, 7316665, 21949995]

約数ペア:

[(1, 21949995), (3, 7316665), (5, 4389999), (15, 1463333), (43, 510465), (129, 170155), (215, 102093), (645, 34031)]