218788479

素因数分解:

$3^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{12721}}^1$

素因数の和:12757

約数の個数: 48

約数和(自身を含む): 406086240

約数和(自身を除く): 187297761

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 49, 63, 91, 117, 147, 189, 273, 351, 441, 637, 819, 1323, 1911, 2457, 5733, 12721, 17199, 38163, 89047, 114489, 165373, 267141, 343467, 496119, 623329, 801423, 1157611, 1488357, 1869987, 2404269, 3472833, 4465071, 5609961, 8103277, 10418499, 16829883, 24309831, 31255497, 72929493, 218788479]

約数ペア:

[(1, 218788479), (3, 72929493), (7, 31255497), (9, 24309831), (13, 16829883), (21, 10418499), (27, 8103277), (39, 5609961), (49, 4465071), (63, 3472833), (91, 2404269), (117, 1869987), (147, 1488357), (189, 1157611), (273, 801423), (351, 623329), (441, 496119), (637, 343467), (819, 267141), (1323, 165373), (1911, 114489), (2457, 89047), (5733, 38163), (12721, 17199)]