19998537

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{13859}}^1$

素因数の和:13912

約数の個数: 16

約数和(自身を含む): 29494080

約数和(自身を除く): 9495543

約数列:

[1, 3, 13, 37, 39, 111, 481, 1443, 13859, 41577, 180167, 512783, 540501, 1538349, 6666179, 19998537]

約数ペア:

[(1, 19998537), (3, 6666179), (13, 1538349), (37, 540501), (39, 512783), (111, 180167), (481, 41577), (1443, 13859)]