21781496

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{6037}}^1$

素因数の和:6095

約数の個数: 32

約数和(自身を含む): 45647280

約数和(自身を除く): 23865784

約数列:

[1, 2, 4, 8, 11, 22, 41, 44, 82, 88, 164, 328, 451, 902, 1804, 3608, 6037, 12074, 24148, 48296, 66407, 132814, 247517, 265628, 495034, 531256, 990068, 1980136, 2722687, 5445374, 10890748, 21781496]

約数ペア:

[(1, 21781496), (2, 10890748), (4, 5445374), (8, 2722687), (11, 1980136), (22, 990068), (41, 531256), (44, 495034), (82, 265628), (88, 247517), (164, 132814), (328, 66407), (451, 48296), (902, 24148), (1804, 12074), (3608, 6037)]