21244575

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{2341}}^1$

素因数の和:2376

約数の個数: 36

約数和(自身を含む): 38624264

約数和(自身を除く): 17379689

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 121, 165, 275, 363, 605, 825, 1815, 2341, 3025, 7023, 9075, 11705, 25751, 35115, 58525, 77253, 128755, 175575, 283261, 386265, 643775, 849783, 1416305, 1931325, 4248915, 7081525, 21244575]

約数ペア:

[(1, 21244575), (3, 7081525), (5, 4248915), (11, 1931325), (15, 1416305), (25, 849783), (33, 643775), (55, 386265), (75, 283261), (121, 175575), (165, 128755), (275, 77253), (363, 58525), (605, 35115), (825, 25751), (1815, 11705), (2341, 9075), (3025, 7023)]