20227779

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^3\times {\mathrm{31}}^1$

素因数の和:90

約数の個数: 64

約数和(自身を含む): 36556800

約数和(自身を除く): 16329021

約数列:

[1, 3, 9, 11, 13, 27, 31, 33, 39, 93, 99, 117, 143, 169, 279, 297, 341, 351, 403, 429, 507, 837, 1023, 1209, 1287, 1521, 1859, 2197, 3069, 3627, 3861, 4433, 4563, 5239, 5577, 6591, 9207, 10881, 13299, 15717, 16731, 19773, 24167, 39897, 47151, 50193, 57629, 59319, 68107, 72501, 119691, 141453, 172887, 204321, 217503, 518661, 612963, 652509, 749177, 1555983, 1838889, 2247531, 6742593, 20227779]

約数ペア:

[(1, 20227779), (3, 6742593), (9, 2247531), (11, 1838889), (13, 1555983), (27, 749177), (31, 652509), (33, 612963), (39, 518661), (93, 217503), (99, 204321), (117, 172887), (143, 141453), (169, 119691), (279, 72501), (297, 68107), (341, 59319), (351, 57629), (403, 50193), (429, 47151), (507, 39897), (837, 24167), (1023, 19773), (1209, 16731), (1287, 15717), (1521, 13299), (1859, 10881), (2197, 9207), (3069, 6591), (3627, 5577), (3861, 5239), (4433, 4563)]