18407319

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{21379}}^1$

素因数の和:21430

約数の個数: 16

約数和(自身を含む): 28734720

約数和(自身を除く): 10327401

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 21379, 64137, 149653, 448959, 876539, 2629617, 6135773, 18407319]

約数ペア:

[(1, 18407319), (3, 6135773), (7, 2629617), (21, 876539), (41, 448959), (123, 149653), (287, 64137), (861, 21379)]