28051518

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{643}}^1\times {\mathrm{661}}^1$

素因数の和:1320

約数の個数: 32

約数和(自身を含む): 61391232

約数和(自身を除く): 33339714

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 643, 661, 1286, 1322, 1929, 1983, 3858, 3966, 7073, 7271, 14146, 14542, 21219, 21813, 42438, 43626, 425023, 850046, 1275069, 2550138, 4675253, 9350506, 14025759, 28051518]

約数ペア:

[(1, 28051518), (2, 14025759), (3, 9350506), (6, 4675253), (11, 2550138), (22, 1275069), (33, 850046), (66, 425023), (643, 43626), (661, 42438), (1286, 21813), (1322, 21219), (1929, 14542), (1983, 14146), (3858, 7271), (3966, 7073)]