18987033

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{6857}}^1$

素因数の和:6944

約数の個数: 16

約数和(自身を含む): 27651456

約数和(自身を除く): 8664423

約数列:

[1, 3, 13, 39, 71, 213, 923, 2769, 6857, 20571, 89141, 267423, 486847, 1460541, 6329011, 18987033]

約数ペア:

[(1, 18987033), (3, 6329011), (13, 1460541), (39, 486847), (71, 267423), (213, 89141), (923, 20571), (2769, 6857)]