20730321

素因数分解:

$3^2\times {\mathrm{73}}^1\times {\mathrm{139}}^1\times {\mathrm{227}}^1$

素因数の和:445

約数の個数: 24

約数和(自身を含む): 30707040

約数和(自身を除く): 9976719

約数列:

[1, 3, 9, 73, 139, 219, 227, 417, 657, 681, 1251, 2043, 10147, 16571, 30441, 31553, 49713, 91323, 94659, 149139, 283977, 2303369, 6910107, 20730321]

約数ペア:

[(1, 20730321), (3, 6910107), (9, 2303369), (73, 283977), (139, 149139), (219, 94659), (227, 91323), (417, 49713), (657, 31553), (681, 30441), (1251, 16571), (2043, 10147)]