21004295

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{5477}}^1$

素因数の和:5554

約数の個数: 16

約数和(自身を含む): 27609120

約数和(自身を除く): 6604825

約数列:

[1, 5, 13, 59, 65, 295, 767, 3835, 5477, 27385, 71201, 323143, 356005, 1615715, 4200859, 21004295]

約数ペア:

[(1, 21004295), (5, 4200859), (13, 1615715), (59, 356005), (65, 323143), (295, 71201), (767, 27385), (3835, 5477)]