1557217928

素因数分解:

$2^3\times 7^1\times {\mathrm{27807463}}^1$

素因数の和:27807476

約数の個数: 16

約数和(自身を含む): 3336895680

約数和(自身を除く): 1779677752

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 27807463, 55614926, 111229852, 194652241, 222459704, 389304482, 778608964, 1557217928]

約数ペア:

[(1, 1557217928), (2, 778608964), (4, 389304482), (7, 222459704), (8, 194652241), (14, 111229852), (28, 55614926), (56, 27807463)]