18675839

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{8923}}^1$

素因数の和:8966

約数の個数: 16

約数和(自身を含む): 23987712

約数和(自身を除く): 5311873

約数列:

[1, 7, 13, 23, 91, 161, 299, 2093, 8923, 62461, 115999, 205229, 811993, 1436603, 2667977, 18675839]

約数ペア:

[(1, 18675839), (7, 2667977), (13, 1436603), (23, 811993), (91, 205229), (161, 115999), (299, 62461), (2093, 8923)]