21300387

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{3307}}^1$

素因数の和:3442

約数の個数: 16

約数和(自身を含む): 30168960

約数和(自身を除く): 8868573

約数列:

[1, 3, 19, 57, 113, 339, 2147, 3307, 6441, 9921, 62833, 188499, 373691, 1121073, 7100129, 21300387]

約数ペア:

[(1, 21300387), (3, 7100129), (19, 1121073), (57, 373691), (113, 188499), (339, 62833), (2147, 9921), (3307, 6441)]