21530678

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{26713}}^1$

素因数の和:26759

約数の個数: 16

約数和(自身を含む): 35903616

約数和(自身を除く): 14372938

約数列:

[1, 2, 13, 26, 31, 62, 403, 806, 26713, 53426, 347269, 694538, 828103, 1656206, 10765339, 21530678]

約数ペア:

[(1, 21530678), (2, 10765339), (13, 1656206), (26, 828103), (31, 694538), (62, 347269), (403, 53426), (806, 26713)]