166221321

素因数分解:

$3^1\times 7^1\times {\mathrm{1487}}^1\times {\mathrm{5323}}^1$

素因数の和:6820

約数の個数: 16

約数和(自身を含む): 253507584

約数和(自身を除く): 87286263

約数列:

[1, 3, 7, 21, 1487, 4461, 5323, 10409, 15969, 31227, 37261, 111783, 7915301, 23745903, 55407107, 166221321]

約数ペア:

[(1, 166221321), (3, 55407107), (7, 23745903), (21, 7915301), (1487, 111783), (4461, 37261), (5323, 31227), (10409, 15969)]