18257421

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{66877}}^1$

素因数の和:66900

約数の個数: 16

約数和(自身を含む): 29961344

約数和(自身を除く): 11703923

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 66877, 200631, 468139, 869401, 1404417, 2608203, 6085807, 18257421]

約数ペア:

[(1, 18257421), (3, 6085807), (7, 2608203), (13, 1404417), (21, 869401), (39, 468139), (91, 200631), (273, 66877)]