217389627

素因数分解:

$3^2\times 7^3\times {\mathrm{13}}^1\times {\mathrm{5417}}^1$

素因数の和:5457

約数の個数: 48

約数和(自身を含む): 394430400

約数和(自身を除く): 177040773

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 273, 343, 441, 637, 819, 1029, 1911, 3087, 4459, 5417, 5733, 13377, 16251, 37919, 40131, 48753, 70421, 113757, 211263, 265433, 341271, 492947, 633789, 796299, 1478841, 1858031, 2388897, 3450629, 4436523, 5574093, 10351887, 16722279, 24154403, 31055661, 72463209, 217389627]

約数ペア:

[(1, 217389627), (3, 72463209), (7, 31055661), (9, 24154403), (13, 16722279), (21, 10351887), (39, 5574093), (49, 4436523), (63, 3450629), (91, 2388897), (117, 1858031), (147, 1478841), (273, 796299), (343, 633789), (441, 492947), (637, 341271), (819, 265433), (1029, 211263), (1911, 113757), (3087, 70421), (4459, 48753), (5417, 40131), (5733, 37919), (13377, 16251)]