21159567

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{401}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 36874656

約数和(自身を除く): 15715089

約数列:

[1, 3, 9, 11, 13, 33, 39, 41, 99, 117, 123, 143, 369, 401, 429, 451, 533, 1203, 1287, 1353, 1599, 3609, 4059, 4411, 4797, 5213, 5863, 13233, 15639, 16441, 17589, 39699, 46917, 49323, 52767, 57343, 147969, 172029, 180851, 213733, 516087, 542553, 641199, 1627659, 1923597, 2351063, 7053189, 21159567]

約数ペア:

[(1, 21159567), (3, 7053189), (9, 2351063), (11, 1923597), (13, 1627659), (33, 641199), (39, 542553), (41, 516087), (99, 213733), (117, 180851), (123, 172029), (143, 147969), (369, 57343), (401, 52767), (429, 49323), (451, 46917), (533, 39699), (1203, 17589), (1287, 16441), (1353, 15639), (1599, 13233), (3609, 5863), (4059, 5213), (4411, 4797)]