21132990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{234811}}^1$

素因数の和:234824

約数の個数: 24

約数和(自身を含む): 54946008

約数和(自身を除く): 33813018

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 234811, 469622, 704433, 1174055, 1408866, 2113299, 2348110, 3522165, 4226598, 7044330, 10566495, 21132990]

約数ペア:

[(1, 21132990), (2, 10566495), (3, 7044330), (5, 4226598), (6, 3522165), (9, 2348110), (10, 2113299), (15, 1408866), (18, 1174055), (30, 704433), (45, 469622), (90, 234811)]