18520117

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{12659}}^1$

素因数の和:12696

約数の個数: 16

約数和(自身を含む): 24307200

約数和(自身を除く): 5787083

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 12659, 88613, 139249, 240521, 974743, 1683647, 2645731, 18520117]

約数ペア:

[(1, 18520117), (7, 2645731), (11, 1683647), (19, 974743), (77, 240521), (133, 139249), (209, 88613), (1463, 12659)]