21311535

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{202967}}^1$

素因数の和:202982

約数の個数: 16

約数和(自身を含む): 38969856

約数和(自身を除く): 17658321

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 202967, 608901, 1014835, 1420769, 3044505, 4262307, 7103845, 21311535]

約数ペア:

[(1, 21311535), (3, 7103845), (5, 4262307), (7, 3044505), (15, 1420769), (21, 1014835), (35, 608901), (105, 202967)]