21000604808

素因数分解:

$2^3\times {\mathrm{6599}}^1\times {\mathrm{397799}}^1$

素因数の和:404404

約数の個数: 16

約数和(自身を含む): 39382200000

約数和(自身を除く): 18381595192

約数列:

[1, 2, 4, 8, 6599, 13198, 26396, 52792, 397799, 795598, 1591196, 3182392, 2625075601, 5250151202, 10500302404, 21000604808]

約数ペア:

[(1, 21000604808), (2, 10500302404), (4, 5250151202), (8, 2625075601), (6599, 3182392), (13198, 1591196), (26396, 795598), (52792, 397799)]