21973240

素因数分解:

$2^3\times 5^1\times {\mathrm{549331}}^1$

素因数の和:549342

約数の個数: 16

約数和(自身を含む): 49439880

約数和(自身を除く): 27466640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 549331, 1098662, 2197324, 2746655, 4394648, 5493310, 10986620, 21973240]

約数ペア:

[(1, 21973240), (2, 10986620), (4, 5493310), (5, 4394648), (8, 2746655), (10, 2197324), (20, 1098662), (40, 549331)]