21816245

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{5021}}^1$

素因数の和:5116

約数の個数: 16

約数和(自身を含む): 28926720

約数和(自身を除く): 7110475

約数列:

[1, 5, 11, 55, 79, 395, 869, 4345, 5021, 25105, 55231, 276155, 396659, 1983295, 4363249, 21816245]

約数ペア:

[(1, 21816245), (5, 4363249), (11, 1983295), (55, 396659), (79, 276155), (395, 55231), (869, 25105), (4345, 5021)]