21274055

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{373}}^1$

素因数の和:467

約数の個数: 32

約数和(自身を含む): 30051648

約数和(自身を除く): 8777593

約数列:

[1, 5, 11, 17, 55, 61, 85, 187, 305, 373, 671, 935, 1037, 1865, 3355, 4103, 5185, 6341, 11407, 20515, 22753, 31705, 57035, 69751, 113765, 250283, 348755, 386801, 1251415, 1934005, 4254811, 21274055]

約数ペア:

[(1, 21274055), (5, 4254811), (11, 1934005), (17, 1251415), (55, 386801), (61, 348755), (85, 250283), (187, 113765), (305, 69751), (373, 57035), (671, 31705), (935, 22753), (1037, 20515), (1865, 11407), (3355, 6341), (4103, 5185)]