17921020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{68927}}^1$

素因数の和:68949

約数の個数: 24

約数和(自身を含む): 40529664

約数和(自身を除く): 22608644

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 68927, 137854, 275708, 344635, 689270, 896051, 1378540, 1792102, 3584204, 4480255, 8960510, 17921020]

約数ペア:

[(1, 17921020), (2, 8960510), (4, 4480255), (5, 3584204), (10, 1792102), (13, 1378540), (20, 896051), (26, 689270), (52, 344635), (65, 275708), (130, 137854), (260, 68927)]