21055275

素因数分解:

$3^3\times 5^2\times {\mathrm{31193}}^1$

素因数の和:31212

約数の個数: 24

約数和(自身を含む): 38680560

約数和(自身を除く): 17625285

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 31193, 93579, 155965, 280737, 467895, 779825, 842211, 1403685, 2339475, 4211055, 7018425, 21055275]

約数ペア:

[(1, 21055275), (3, 7018425), (5, 4211055), (9, 2339475), (15, 1403685), (25, 842211), (27, 779825), (45, 467895), (75, 280737), (135, 155965), (225, 93579), (675, 31193)]