18717412

素因数分解:

$2^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:173

約数の個数: 72

約数和(自身を含む): 40937400

約数和(自身を除く): 22219988

約数列:

[1, 2, 4, 7, 14, 28, 29, 37, 49, 58, 74, 89, 98, 116, 148, 178, 196, 203, 259, 356, 406, 518, 623, 812, 1036, 1073, 1246, 1421, 1813, 2146, 2492, 2581, 2842, 3293, 3626, 4292, 4361, 5162, 5684, 6586, 7252, 7511, 8722, 10324, 13172, 15022, 17444, 18067, 23051, 30044, 36134, 46102, 52577, 72268, 92204, 95497, 105154, 126469, 161357, 190994, 210308, 252938, 322714, 381988, 505876, 645428, 668479, 1336958, 2673916, 4679353, 9358706, 18717412]

約数ペア:

[(1, 18717412), (2, 9358706), (4, 4679353), (7, 2673916), (14, 1336958), (28, 668479), (29, 645428), (37, 505876), (49, 381988), (58, 322714), (74, 252938), (89, 210308), (98, 190994), (116, 161357), (148, 126469), (178, 105154), (196, 95497), (203, 92204), (259, 72268), (356, 52577), (406, 46102), (518, 36134), (623, 30044), (812, 23051), (1036, 18067), (1073, 17444), (1246, 15022), (1421, 13172), (1813, 10324), (2146, 8722), (2492, 7511), (2581, 7252), (2842, 6586), (3293, 5684), (3626, 5162), (4292, 4361)]