21419545

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{449}}^1$

素因数の和:537

約数の個数: 32

約数和(自身を含む): 31104000

約数和(自身を除く): 9684455

約数列:

[1, 5, 7, 29, 35, 47, 145, 203, 235, 329, 449, 1015, 1363, 1645, 2245, 3143, 6815, 9541, 13021, 15715, 21103, 47705, 65105, 91147, 105515, 147721, 455735, 611987, 738605, 3059935, 4283909, 21419545]

約数ペア:

[(1, 21419545), (5, 4283909), (7, 3059935), (29, 738605), (35, 611987), (47, 455735), (145, 147721), (203, 105515), (235, 91147), (329, 65105), (449, 47705), (1015, 21103), (1363, 15715), (1645, 13021), (2245, 9541), (3143, 6815)]