18863607

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{6857}}^1$

素因数の和:6998

約数の個数: 16

約数和(自身を含む): 28968192

約数和(自身を除く): 10104585

約数列:

[1, 3, 7, 21, 131, 393, 917, 2751, 6857, 20571, 47999, 143997, 898267, 2694801, 6287869, 18863607]

約数ペア:

[(1, 18863607), (3, 6287869), (7, 2694801), (21, 898267), (131, 143997), (393, 47999), (917, 20571), (2751, 6857)]