42490917

素因数分解:

$3^2\times 7^1\times {\mathrm{787}}^1\times {\mathrm{857}}^1$

素因数の和:1657

約数の個数: 24

約数和(自身を含む): 70314816

約数和(自身を除く): 27823899

約数列:

[1, 3, 7, 9, 21, 63, 787, 857, 2361, 2571, 5509, 5999, 7083, 7713, 16527, 17997, 49581, 53991, 674459, 2023377, 4721213, 6070131, 14163639, 42490917]

約数ペア:

[(1, 42490917), (3, 14163639), (7, 6070131), (9, 4721213), (21, 2023377), (63, 674459), (787, 53991), (857, 49581), (2361, 17997), (2571, 16527), (5509, 7713), (5999, 7083)]