21869240

素因数分解:

$2^3\times 5^1\times {\mathrm{546731}}^1$

素因数の和:546742

約数の個数: 16

約数和(自身を含む): 49205880

約数和(自身を除く): 27336640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 546731, 1093462, 2186924, 2733655, 4373848, 5467310, 10934620, 21869240]

約数ペア:

[(1, 21869240), (2, 10934620), (4, 5467310), (5, 4373848), (8, 2733655), (10, 2186924), (20, 1093462), (40, 546731)]