21381122

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{2887}}^1$

素因数の和:2942

約数の個数: 24

約数和(自身を含む): 38329536

約数和(自身を除く): 16948414

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 529, 1058, 2887, 3703, 5774, 7406, 20209, 40418, 66401, 132802, 464807, 929614, 1527223, 3054446, 10690561, 21381122]

約数ペア:

[(1, 21381122), (2, 10690561), (7, 3054446), (14, 1527223), (23, 929614), (46, 464807), (161, 132802), (322, 66401), (529, 40418), (1058, 20209), (2887, 7406), (3703, 5774)]