20317995

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12203}}^1$

素因数の和:12251

約数の個数: 24

約数和(自身を含む): 36172656

約数和(自身を除く): 15854661

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665, 12203, 36609, 61015, 109827, 183045, 451511, 549135, 1354533, 2257555, 4063599, 6772665, 20317995]

約数ペア:

[(1, 20317995), (3, 6772665), (5, 4063599), (9, 2257555), (15, 1354533), (37, 549135), (45, 451511), (111, 183045), (185, 109827), (333, 61015), (555, 36609), (1665, 12203)]