20075913

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{821}}^1$

素因数の和:870

約数の個数: 48

約数和(自身を含む): 35904960

約数和(自身を除く): 15829047

約数列:

[1, 3, 9, 11, 13, 19, 33, 39, 57, 99, 117, 143, 171, 209, 247, 429, 627, 741, 821, 1287, 1881, 2223, 2463, 2717, 7389, 8151, 9031, 10673, 15599, 24453, 27093, 32019, 46797, 81279, 96057, 117403, 140391, 171589, 202787, 352209, 514767, 608361, 1056627, 1544301, 1825083, 2230657, 6691971, 20075913]

約数ペア:

[(1, 20075913), (3, 6691971), (9, 2230657), (11, 1825083), (13, 1544301), (19, 1056627), (33, 608361), (39, 514767), (57, 352209), (99, 202787), (117, 171589), (143, 140391), (171, 117403), (209, 96057), (247, 81279), (429, 46797), (627, 32019), (741, 27093), (821, 24453), (1287, 15599), (1881, 10673), (2223, 9031), (2463, 8151), (2717, 7389)]