21269985

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{11719}}^1$

素因数の和:11749

約数の個数: 24

約数和(自身を含む): 37410240

約数和(自身を除く): 16140255

約数列:

[1, 3, 5, 11, 15, 33, 55, 121, 165, 363, 605, 1815, 11719, 35157, 58595, 128909, 175785, 386727, 644545, 1417999, 1933635, 4253997, 7089995, 21269985]

約数ペア:

[(1, 21269985), (3, 7089995), (5, 4253997), (11, 1933635), (15, 1417999), (33, 644545), (55, 386727), (121, 175785), (165, 128909), (363, 58595), (605, 35157), (1815, 11719)]