20930481

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{139}}^1$

素因数の和:188

約数の個数: 60

約数和(自身を含む): 37200240

約数和(自身を除く): 16269759

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 81, 99, 117, 139, 143, 169, 297, 351, 417, 429, 507, 891, 1053, 1251, 1287, 1521, 1529, 1807, 1859, 3753, 3861, 4563, 4587, 5421, 5577, 11259, 11583, 13689, 13761, 16263, 16731, 19877, 23491, 41283, 48789, 50193, 59631, 70473, 123849, 146367, 150579, 178893, 211419, 258401, 536679, 634257, 775203, 1610037, 1902771, 2325609, 6976827, 20930481]

約数ペア:

[(1, 20930481), (3, 6976827), (9, 2325609), (11, 1902771), (13, 1610037), (27, 775203), (33, 634257), (39, 536679), (81, 258401), (99, 211419), (117, 178893), (139, 150579), (143, 146367), (169, 123849), (297, 70473), (351, 59631), (417, 50193), (429, 48789), (507, 41283), (891, 23491), (1053, 19877), (1251, 16731), (1287, 16263), (1521, 13761), (1529, 13689), (1807, 11583), (1859, 11259), (3753, 5577), (3861, 5421), (4563, 4587)]