15855861

素因数分解:

$3^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{811}}^1$

素因数の和:854

約数の個数: 32

約数和(自身を含む): 25984000

約数和(自身を除く): 10128139

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 343, 399, 811, 931, 1029, 2433, 2793, 5677, 6517, 15409, 17031, 19551, 39739, 46227, 107863, 119217, 278173, 323589, 755041, 834519, 2265123, 5285287, 15855861]

約数ペア:

[(1, 15855861), (3, 5285287), (7, 2265123), (19, 834519), (21, 755041), (49, 323589), (57, 278173), (133, 119217), (147, 107863), (343, 46227), (399, 39739), (811, 19551), (931, 17031), (1029, 15409), (2433, 6517), (2793, 5677)]