20009665

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{4217}}^1$

素因数の和:4308

約数の個数: 16

約数和(自身を含む): 26219088

約数和(自身を除く): 6209423

約数列:

[1, 5, 13, 65, 73, 365, 949, 4217, 4745, 21085, 54821, 274105, 307841, 1539205, 4001933, 20009665]

約数ペア:

[(1, 20009665), (5, 4001933), (13, 1539205), (65, 307841), (73, 274105), (365, 54821), (949, 21085), (4217, 4745)]