21380646

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{509063}}^1$

素因数の和:509075

約数の個数: 16

約数和(自身を含む): 48870144

約数和(自身を除く): 27489498

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 509063, 1018126, 1527189, 3054378, 3563441, 7126882, 10690323, 21380646]

約数ペア:

[(1, 21380646), (2, 10690323), (3, 7126882), (6, 3563441), (7, 3054378), (14, 1527189), (21, 1018126), (42, 509063)]