21150495

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12703}}^1$

素因数の和:12751

約数の個数: 24

約数和(自身を含む): 37654656

約数和(自身を除く): 16504161

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665, 12703, 38109, 63515, 114327, 190545, 470011, 571635, 1410033, 2350055, 4230099, 7050165, 21150495]

約数ペア:

[(1, 21150495), (3, 7050165), (5, 4230099), (9, 2350055), (15, 1410033), (37, 571635), (45, 470011), (111, 190545), (185, 114327), (333, 63515), (555, 38109), (1665, 12703)]