21507396

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{41681}}^1$

素因数の和:41731

約数の個数: 24

約数和(自身を含む): 51352224

約数和(自身を除く): 29844828

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 41681, 83362, 125043, 166724, 250086, 500172, 1792283, 3584566, 5376849, 7169132, 10753698, 21507396]

約数ペア:

[(1, 21507396), (2, 10753698), (3, 7169132), (4, 5376849), (6, 3584566), (12, 1792283), (43, 500172), (86, 250086), (129, 166724), (172, 125043), (258, 83362), (516, 41681)]