21560695

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{3727}}^1$

素因数の和:3834

約数の個数: 16

約数和(自身を含む): 28183680

約数和(自身を除く): 6622985

約数列:

[1, 5, 13, 65, 89, 445, 1157, 3727, 5785, 18635, 48451, 242255, 331703, 1658515, 4312139, 21560695]

約数ペア:

[(1, 21560695), (5, 4312139), (13, 1658515), (65, 331703), (89, 242255), (445, 48451), (1157, 18635), (3727, 5785)]