19991313

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{18059}}^1$

素因数の和:18109

約数の個数: 16

約数和(自身を含む): 30340800

約数和(自身を除く): 10349487

約数列:

[1, 3, 9, 27, 41, 123, 369, 1107, 18059, 54177, 162531, 487593, 740419, 2221257, 6663771, 19991313]

約数ペア:

[(1, 19991313), (3, 6663771), (9, 2221257), (27, 740419), (41, 487593), (123, 162531), (369, 54177), (1107, 18059)]