21240008

素因数分解:

$2^3\times {\mathrm{587}}^1\times {\mathrm{4523}}^1$

素因数の和:5116

約数の個数: 16

約数和(自身を含む): 39901680

約数和(自身を除く): 18661672

約数列:

[1, 2, 4, 8, 587, 1174, 2348, 4523, 4696, 9046, 18092, 36184, 2655001, 5310002, 10620004, 21240008]

約数ペア:

[(1, 21240008), (2, 10620004), (4, 5310002), (8, 2655001), (587, 36184), (1174, 18092), (2348, 9046), (4523, 4696)]