21758121

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31397}}^1$

素因数の和:31421

約数の個数: 24

約数和(自身を含む): 39184704

約数和(自身を除く): 17426583

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 31397, 94191, 219779, 282573, 345367, 659337, 1036101, 1978011, 2417569, 3108303, 7252707, 21758121]

約数ペア:

[(1, 21758121), (3, 7252707), (7, 3108303), (9, 2417569), (11, 1978011), (21, 1036101), (33, 659337), (63, 345367), (77, 282573), (99, 219779), (231, 94191), (693, 31397)]