399127834

素因数分解:

$2^1\times 7^4\times {\mathrm{83117}}^1$

素因数の和:83147

約数の個数: 20

約数和(自身を含む): 698440554

約数和(自身を除く): 299312720

約数列:

[1, 2, 7, 14, 49, 98, 343, 686, 2401, 4802, 83117, 166234, 581819, 1163638, 4072733, 8145466, 28509131, 57018262, 199563917, 399127834]

約数ペア:

[(1, 399127834), (2, 199563917), (7, 57018262), (14, 28509131), (49, 8145466), (98, 4072733), (343, 1163638), (686, 581819), (2401, 166234), (4802, 83117)]