21085095

素因数分解:

$3^1\times 5^1\times {\mathrm{911}}^1\times {\mathrm{1543}}^1$

素因数の和:2462

約数の個数: 16

約数和(自身を含む): 33795072

約数和(自身を除く): 12709977

約数列:

[1, 3, 5, 15, 911, 1543, 2733, 4555, 4629, 7715, 13665, 23145, 1405673, 4217019, 7028365, 21085095]

約数ペア:

[(1, 21085095), (3, 7028365), (5, 4217019), (15, 1405673), (911, 23145), (1543, 13665), (2733, 7715), (4555, 4629)]