21620445

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{18719}}^1$

素因数の和:18745

約数の個数: 32

約数和(自身を含む): 43130880

約数和(自身を除く): 21510435

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 105, 165, 231, 385, 1155, 18719, 56157, 93595, 131033, 205909, 280785, 393099, 617727, 655165, 1029545, 1441363, 1965495, 3088635, 4324089, 7206815, 21620445]

約数ペア:

[(1, 21620445), (3, 7206815), (5, 4324089), (7, 3088635), (11, 1965495), (15, 1441363), (21, 1029545), (33, 655165), (35, 617727), (55, 393099), (77, 280785), (105, 205909), (165, 131033), (231, 93595), (385, 56157), (1155, 18719)]