18020884

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^3\times {\mathrm{131}}^1$

素因数の和:193

約数の個数: 48

約数和(自身を含む): 38586240

約数和(自身を除く): 20565356

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 131, 238, 262, 289, 476, 524, 578, 917, 1156, 1834, 2023, 2227, 3668, 4046, 4454, 4913, 8092, 8908, 9826, 15589, 19652, 31178, 34391, 37859, 62356, 68782, 75718, 137564, 151436, 265013, 530026, 643603, 1060052, 1287206, 2574412, 4505221, 9010442, 18020884]

約数ペア:

[(1, 18020884), (2, 9010442), (4, 4505221), (7, 2574412), (14, 1287206), (17, 1060052), (28, 643603), (34, 530026), (68, 265013), (119, 151436), (131, 137564), (238, 75718), (262, 68782), (289, 62356), (476, 37859), (524, 34391), (578, 31178), (917, 19652), (1156, 15589), (1834, 9826), (2023, 8908), (2227, 8092), (3668, 4913), (4046, 4454)]