21294687

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{4729}}^1$

素因数の和:4830

約数の個数: 16

約数和(自身を含む): 30272000

約数和(自身を除く): 8977313

約数列:

[1, 3, 19, 57, 79, 237, 1501, 4503, 4729, 14187, 89851, 269553, 373591, 1120773, 7098229, 21294687]

約数ペア:

[(1, 21294687), (3, 7098229), (19, 1120773), (57, 373591), (79, 269553), (237, 89851), (1501, 14187), (4503, 4729)]