261303

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{541}}^1$

素因数の和:574

約数の個数: 16

約数和(自身を含む): 416256

約数和(自身を除く): 154953

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 541, 1623, 3787, 11361, 12443, 37329, 87101, 261303]

約数ペア:

[(1, 261303), (3, 87101), (7, 37329), (21, 12443), (23, 11361), (69, 3787), (161, 1623), (483, 541)]