18853016

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1$

素因数の和:121

約数の個数: 128

約数和(自身を含む): 48384000

約数和(自身を除く): 29530984

約数列:

[1, 2, 4, 7, 8, 13, 14, 19, 26, 28, 29, 38, 47, 52, 56, 58, 76, 91, 94, 104, 116, 133, 152, 182, 188, 203, 232, 247, 266, 329, 364, 376, 377, 406, 494, 532, 551, 611, 658, 728, 754, 812, 893, 988, 1064, 1102, 1222, 1316, 1363, 1508, 1624, 1729, 1786, 1976, 2204, 2444, 2632, 2639, 2726, 3016, 3458, 3572, 3857, 4277, 4408, 4888, 5278, 5452, 6251, 6916, 7144, 7163, 7714, 8554, 9541, 10556, 10904, 11609, 12502, 13832, 14326, 15428, 17108, 17719, 19082, 21112, 23218, 25004, 25897, 28652, 30856, 34216, 35438, 38164, 46436, 50008, 50141, 51794, 57304, 70876, 76328, 81263, 92872, 100282, 103588, 124033, 141752, 162526, 181279, 200564, 207176, 248066, 325052, 336661, 362558, 401128, 496132, 650104, 673322, 725116, 992264, 1346644, 1450232, 2356627, 2693288, 4713254, 9426508, 18853016]

約数ペア:

[(1, 18853016), (2, 9426508), (4, 4713254), (7, 2693288), (8, 2356627), (13, 1450232), (14, 1346644), (19, 992264), (26, 725116), (28, 673322), (29, 650104), (38, 496132), (47, 401128), (52, 362558), (56, 336661), (58, 325052), (76, 248066), (91, 207176), (94, 200564), (104, 181279), (116, 162526), (133, 141752), (152, 124033), (182, 103588), (188, 100282), (203, 92872), (232, 81263), (247, 76328), (266, 70876), (329, 57304), (364, 51794), (376, 50141), (377, 50008), (406, 46436), (494, 38164), (532, 35438), (551, 34216), (611, 30856), (658, 28652), (728, 25897), (754, 25004), (812, 23218), (893, 21112), (988, 19082), (1064, 17719), (1102, 17108), (1222, 15428), (1316, 14326), (1363, 13832), (1508, 12502), (1624, 11609), (1729, 10904), (1786, 10556), (1976, 9541), (2204, 8554), (2444, 7714), (2632, 7163), (2639, 7144), (2726, 6916), (3016, 6251), (3458, 5452), (3572, 5278), (3857, 4888), (4277, 4408)]