21531004

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{2459}}^1$

素因数の和:2673

約数の個数: 24

約数和(自身を含む): 41328000

約数和(自身を除く): 19796996

約数列:

[1, 2, 4, 11, 22, 44, 199, 398, 796, 2189, 2459, 4378, 4918, 8756, 9836, 27049, 54098, 108196, 489341, 978682, 1957364, 5382751, 10765502, 21531004]

約数ペア:

[(1, 21531004), (2, 10765502), (4, 5382751), (11, 1957364), (22, 978682), (44, 489341), (199, 108196), (398, 54098), (796, 27049), (2189, 9836), (2459, 8756), (4378, 4918)]