27781887

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^2\times {\mathrm{787}}^1$

素因数の和:879

約数の個数: 24

約数和(自身を含む): 43447168

約数和(自身を除く): 15665281

約数列:

[1, 3, 7, 21, 41, 123, 287, 787, 861, 1681, 2361, 5043, 5509, 11767, 16527, 32267, 35301, 96801, 225869, 677607, 1322947, 3968841, 9260629, 27781887]

約数ペア:

[(1, 27781887), (3, 9260629), (7, 3968841), (21, 1322947), (41, 677607), (123, 225869), (287, 96801), (787, 35301), (861, 32267), (1681, 16527), (2361, 11767), (5043, 5509)]