18561993

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{2377}}^1$

素因数の和:2536

約数の個数: 16

約数和(自身を含む): 26253120

約数和(自身を除く): 7691127

約数列:

[1, 3, 19, 57, 137, 411, 2377, 2603, 7131, 7809, 45163, 135489, 325649, 976947, 6187331, 18561993]

約数ペア:

[(1, 18561993), (3, 6187331), (19, 976947), (57, 325649), (137, 135489), (411, 45163), (2377, 7809), (2603, 7131)]