81972711

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{2909}}^1$

素因数の和:3047

約数の個数: 24

約数和(自身を含む): 123477120

約数和(自身を除く): 41504409

約数列:

[1, 3, 9, 31, 93, 101, 279, 303, 909, 2909, 3131, 8727, 9393, 26181, 28179, 90179, 270537, 293809, 811611, 881427, 2644281, 9108079, 27324237, 81972711]

約数ペア:

[(1, 81972711), (3, 27324237), (9, 9108079), (31, 2644281), (93, 881427), (101, 811611), (279, 293809), (303, 270537), (909, 90179), (2909, 28179), (3131, 26181), (8727, 9393)]