18996376

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:224

約数の個数: 64

約数和(自身を含む): 42497280

約数和(自身を除く): 23500904

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 67, 83, 122, 134, 166, 244, 268, 332, 427, 469, 488, 536, 581, 664, 854, 938, 1162, 1708, 1876, 2324, 3416, 3752, 4087, 4648, 5063, 5561, 8174, 10126, 11122, 16348, 20252, 22244, 28609, 32696, 35441, 38927, 40504, 44488, 57218, 70882, 77854, 114436, 141764, 155708, 228872, 283528, 311416, 339221, 678442, 1356884, 2374547, 2713768, 4749094, 9498188, 18996376]

約数ペア:

[(1, 18996376), (2, 9498188), (4, 4749094), (7, 2713768), (8, 2374547), (14, 1356884), (28, 678442), (56, 339221), (61, 311416), (67, 283528), (83, 228872), (122, 155708), (134, 141764), (166, 114436), (244, 77854), (268, 70882), (332, 57218), (427, 44488), (469, 40504), (488, 38927), (536, 35441), (581, 32696), (664, 28609), (854, 22244), (938, 20252), (1162, 16348), (1708, 11122), (1876, 10126), (2324, 8174), (3416, 5561), (3752, 5063), (4087, 4648)]