20621403

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{577}}^1$

素因数の和:632

約数の個数: 36

約数和(自身を含む): 34354008

約数和(自身を除く): 13732605

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 171, 209, 361, 577, 627, 1083, 1731, 1881, 3249, 3971, 5193, 6347, 10963, 11913, 19041, 32889, 35739, 57123, 98667, 120593, 208297, 361779, 624891, 1085337, 1874673, 2291267, 6873801, 20621403]

約数ペア:

[(1, 20621403), (3, 6873801), (9, 2291267), (11, 1874673), (19, 1085337), (33, 624891), (57, 361779), (99, 208297), (171, 120593), (209, 98667), (361, 57123), (577, 35739), (627, 32889), (1083, 19041), (1731, 11913), (1881, 10963), (3249, 6347), (3971, 5193)]