21308859

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{5519}}^1$

素因数の和:5552

約数の個数: 32

約数和(自身を含む): 37094400

約数和(自身を除く): 15785541

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 99, 117, 143, 297, 351, 429, 1287, 3861, 5519, 16557, 49671, 60709, 71747, 149013, 182127, 215241, 546381, 645723, 789217, 1639143, 1937169, 2367651, 7102953, 21308859]

約数ペア:

[(1, 21308859), (3, 7102953), (9, 2367651), (11, 1937169), (13, 1639143), (27, 789217), (33, 645723), (39, 546381), (99, 215241), (117, 182127), (143, 149013), (297, 71747), (351, 60709), (429, 49671), (1287, 16557), (3861, 5519)]