18991170099

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{245621}}^1$

素因数の和:245720

約数の個数: 36

約数和(自身を含む): 30576991536

約数和(自身を除く): 11585821437

約数列:

[1, 3, 9, 11, 33, 71, 99, 121, 213, 363, 639, 781, 1089, 2343, 7029, 8591, 25773, 77319, 245621, 736863, 2210589, 2701831, 8105493, 17439091, 24316479, 29720141, 52317273, 89160423, 156951819, 191830001, 267481269, 575490003, 1726470009, 2110130011, 6330390033, 18991170099]

約数ペア:

[(1, 18991170099), (3, 6330390033), (9, 2110130011), (11, 1726470009), (33, 575490003), (71, 267481269), (99, 191830001), (121, 156951819), (213, 89160423), (363, 52317273), (639, 29720141), (781, 24316479), (1089, 17439091), (2343, 8105493), (7029, 2701831), (8591, 2210589), (25773, 736863), (77319, 245621)]