221805423

素因数分解:

$3^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{23629}}^1$

素因数の和:23791

約数の個数: 24

約数和(自身を含む): 368628000

約数和(自身を除く): 146822577

約数列:

[1, 3, 7, 9, 21, 63, 149, 447, 1043, 1341, 3129, 9387, 23629, 70887, 165403, 212661, 496209, 1488627, 3520721, 10562163, 24645047, 31686489, 73935141, 221805423]

約数ペア:

[(1, 221805423), (3, 73935141), (7, 31686489), (9, 24645047), (21, 10562163), (63, 3520721), (149, 1488627), (447, 496209), (1043, 212661), (1341, 165403), (3129, 70887), (9387, 23629)]