21000547736

素因数分解:

$2^3\times 7^1\times {\mathrm{375009781}}^1$

素因数の和:375009794

約数の個数: 16

約数和(自身を含む): 45001173840

約数和(自身を除く): 24000626104

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 375009781, 750019562, 1500039124, 2625068467, 3000078248, 5250136934, 10500273868, 21000547736]

約数ペア:

[(1, 21000547736), (2, 10500273868), (4, 5250136934), (7, 3000078248), (8, 2625068467), (14, 1500039124), (28, 750019562), (56, 375009781)]