20291387

素因数分解:

${\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{521}}^1$

素因数の和:646

約数の個数: 16

約数和(自身を含む): 22550400

約数和(自身を除く): 2259013

約数列:

[1, 17, 29, 79, 493, 521, 1343, 2291, 8857, 15109, 38947, 41159, 256853, 699703, 1193611, 20291387]

約数ペア:

[(1, 20291387), (17, 1193611), (29, 699703), (79, 256853), (493, 41159), (521, 38947), (1343, 15109), (2291, 8857)]