28782867

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:267

約数の個数: 32

約数和(自身を含む): 41817600

約数和(自身を除く): 13034733

約数列:

[1, 3, 23, 43, 69, 89, 109, 129, 267, 327, 989, 2047, 2507, 2967, 3827, 4687, 6141, 7521, 9701, 11481, 14061, 29103, 88021, 107801, 223123, 264063, 323403, 417143, 669369, 1251429, 9594289, 28782867]

約数ペア:

[(1, 28782867), (3, 9594289), (23, 1251429), (43, 669369), (69, 417143), (89, 323403), (109, 264063), (129, 223123), (267, 107801), (327, 88021), (989, 29103), (2047, 14061), (2507, 11481), (2967, 9701), (3827, 7521), (4687, 6141)]