81918963

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{22039}}^1$

素因数の和:22111

約数の個数: 24

約数和(自身を含む): 137529600

約数和(自身を除く): 55610637

約数列:

[1, 3, 7, 9, 21, 59, 63, 177, 413, 531, 1239, 3717, 22039, 66117, 154273, 198351, 462819, 1300301, 1388457, 3900903, 9102107, 11702709, 27306321, 81918963]

約数ペア:

[(1, 81918963), (3, 27306321), (7, 11702709), (9, 9102107), (21, 3900903), (59, 1388457), (63, 1300301), (177, 462819), (413, 198351), (531, 154273), (1239, 66117), (3717, 22039)]