15520401

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1217}}^1$

素因数の和:1345

約数の個数: 24

約数和(自身を含む): 24384360

約数和(自身を除く): 8863959

約数列:

[1, 3, 9, 13, 39, 109, 117, 327, 981, 1217, 1417, 3651, 4251, 10953, 12753, 15821, 47463, 132653, 142389, 397959, 1193877, 1724489, 5173467, 15520401]

約数ペア:

[(1, 15520401), (3, 5173467), (9, 1724489), (13, 1193877), (39, 397959), (109, 142389), (117, 132653), (327, 47463), (981, 15821), (1217, 12753), (1417, 10953), (3651, 4251)]