18883347

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{13421}}^1$

素因数の和:13498

約数の個数: 16

約数和(自身を含む): 29206272

約数和(自身を除く): 10322925

約数列:

[1, 3, 7, 21, 67, 201, 469, 1407, 13421, 40263, 93947, 281841, 899207, 2697621, 6294449, 18883347]

約数ペア:

[(1, 18883347), (3, 6294449), (7, 2697621), (21, 899207), (67, 281841), (201, 93947), (469, 40263), (1407, 13421)]