18815517

素因数分解:

$3^3\times 7^1\times {\mathrm{113}}^1\times {\mathrm{881}}^1$

素因数の和:1010

約数の個数: 32

約数和(自身を含む): 32175360

約数和(自身を除く): 13359843

約数列:

[1, 3, 7, 9, 21, 27, 63, 113, 189, 339, 791, 881, 1017, 2373, 2643, 3051, 6167, 7119, 7929, 18501, 21357, 23787, 55503, 99553, 166509, 298659, 696871, 895977, 2090613, 2687931, 6271839, 18815517]

約数ペア:

[(1, 18815517), (3, 6271839), (7, 2687931), (9, 2090613), (21, 895977), (27, 696871), (63, 298659), (113, 166509), (189, 99553), (339, 55503), (791, 23787), (881, 21357), (1017, 18501), (2373, 7929), (2643, 7119), (3051, 6167)]