18149859

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:201

約数の個数: 64

約数和(自身を含む): 33868800

約数和(自身を除く): 15718941

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 83, 89, 91, 117, 189, 249, 267, 273, 351, 581, 623, 747, 801, 819, 1079, 1157, 1743, 1869, 2241, 2403, 2457, 3237, 3471, 5229, 5607, 7387, 7553, 8099, 9711, 10413, 15687, 16821, 22161, 22659, 24297, 29133, 31239, 51709, 66483, 67977, 72891, 96031, 155127, 199449, 203931, 218673, 288093, 465381, 672217, 864279, 1396143, 2016651, 2592837, 6049953, 18149859]

約数ペア:

[(1, 18149859), (3, 6049953), (7, 2592837), (9, 2016651), (13, 1396143), (21, 864279), (27, 672217), (39, 465381), (63, 288093), (83, 218673), (89, 203931), (91, 199449), (117, 155127), (189, 96031), (249, 72891), (267, 67977), (273, 66483), (351, 51709), (581, 31239), (623, 29133), (747, 24297), (801, 22659), (819, 22161), (1079, 16821), (1157, 15687), (1743, 10413), (1869, 9711), (2241, 8099), (2403, 7553), (2457, 7387), (3237, 5607), (3471, 5229)]