18855967

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{659}}^1$

素因数の和:774

約数の個数: 16

約数和(自身を含む): 21288960

約数和(自身を除く): 2432993

約数列:

[1, 13, 31, 71, 403, 659, 923, 2201, 8567, 20429, 28613, 46789, 265577, 608257, 1450459, 18855967]

約数ペア:

[(1, 18855967), (13, 1450459), (31, 608257), (71, 265577), (403, 46789), (659, 28613), (923, 20429), (2201, 8567)]