247357412

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{213977}}^1$

素因数の和:214015

約数の個数: 18

約数和(自身を含む): 459838722

約数和(自身を除く): 212481310

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 213977, 427954, 855908, 3637609, 7275218, 14550436, 61839353, 123678706, 247357412]

約数ペア:

[(1, 247357412), (2, 123678706), (4, 61839353), (17, 14550436), (34, 7275218), (68, 3637609), (289, 855908), (578, 427954), (1156, 213977)]