21021650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{32341}}^1$

素因数の和:32366

約数の個数: 24

約数和(自身を含む): 42109284

約数和(自身を除く): 21087634

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 32341, 64682, 161705, 323410, 420433, 808525, 840866, 1617050, 2102165, 4204330, 10510825, 21021650]

約数ペア:

[(1, 21021650), (2, 10510825), (5, 4204330), (10, 2102165), (13, 1617050), (25, 840866), (26, 808525), (50, 420433), (65, 323410), (130, 161705), (325, 64682), (650, 32341)]