21931398

素因数分解:

$2^1\times 3^4\times {\mathrm{331}}^1\times {\mathrm{409}}^1$

素因数の和:754

約数の個数: 40

約数和(自身を含む): 49411560

約数和(自身を除く): 27480162

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 331, 409, 662, 818, 993, 1227, 1986, 2454, 2979, 3681, 5958, 7362, 8937, 11043, 17874, 22086, 26811, 33129, 53622, 66258, 135379, 270758, 406137, 812274, 1218411, 2436822, 3655233, 7310466, 10965699, 21931398]

約数ペア:

[(1, 21931398), (2, 10965699), (3, 7310466), (6, 3655233), (9, 2436822), (18, 1218411), (27, 812274), (54, 406137), (81, 270758), (162, 135379), (331, 66258), (409, 53622), (662, 33129), (818, 26811), (993, 22086), (1227, 17874), (1986, 11043), (2454, 8937), (2979, 7362), (3681, 5958)]