21494445

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{761}}^1$

素因数の和:1045

約数の個数: 32

約数和(自身を含む): 39502080

約数和(自身を除く): 18007635

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 269, 761, 807, 1345, 1883, 2283, 3805, 4035, 5327, 5649, 9415, 11415, 15981, 26635, 28245, 79905, 204709, 614127, 1023545, 1432963, 3070635, 4298889, 7164815, 21494445]

約数ペア:

[(1, 21494445), (3, 7164815), (5, 4298889), (7, 3070635), (15, 1432963), (21, 1023545), (35, 614127), (105, 204709), (269, 79905), (761, 28245), (807, 26635), (1345, 15981), (1883, 11415), (2283, 9415), (3805, 5649), (4035, 5327)]