18854612

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:181

約数の個数: 72

約数和(自身を含む): 41559840

約数和(自身を除く): 22705228

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 61, 76, 83, 98, 122, 133, 166, 196, 244, 266, 332, 427, 532, 581, 854, 931, 1159, 1162, 1577, 1708, 1862, 2318, 2324, 2989, 3154, 3724, 4067, 4636, 5063, 5978, 6308, 8113, 8134, 10126, 11039, 11956, 16226, 16268, 20252, 22078, 32452, 35441, 44156, 56791, 70882, 77273, 96197, 113582, 141764, 154546, 192394, 227164, 248087, 309092, 384788, 496174, 673379, 992348, 1346758, 2693516, 4713653, 9427306, 18854612]

約数ペア:

[(1, 18854612), (2, 9427306), (4, 4713653), (7, 2693516), (14, 1346758), (19, 992348), (28, 673379), (38, 496174), (49, 384788), (61, 309092), (76, 248087), (83, 227164), (98, 192394), (122, 154546), (133, 141764), (166, 113582), (196, 96197), (244, 77273), (266, 70882), (332, 56791), (427, 44156), (532, 35441), (581, 32452), (854, 22078), (931, 20252), (1159, 16268), (1162, 16226), (1577, 11956), (1708, 11039), (1862, 10126), (2318, 8134), (2324, 8113), (2989, 6308), (3154, 5978), (3724, 5063), (4067, 4636)]