81473778

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{1723}}^1$

素因数の和:1839

約数の個数: 48

約数和(自身を含む): 183957696

約数和(自身を除く): 102483918

約数列:

[1, 2, 3, 6, 9, 18, 37, 71, 74, 111, 142, 213, 222, 333, 426, 639, 666, 1278, 1723, 2627, 3446, 5169, 5254, 7881, 10338, 15507, 15762, 23643, 31014, 47286, 63751, 122333, 127502, 191253, 244666, 366999, 382506, 573759, 733998, 1100997, 1147518, 2201994, 4526321, 9052642, 13578963, 27157926, 40736889, 81473778]

約数ペア:

[(1, 81473778), (2, 40736889), (3, 27157926), (6, 13578963), (9, 9052642), (18, 4526321), (37, 2201994), (71, 1147518), (74, 1100997), (111, 733998), (142, 573759), (213, 382506), (222, 366999), (333, 244666), (426, 191253), (639, 127502), (666, 122333), (1278, 63751), (1723, 47286), (2627, 31014), (3446, 23643), (5169, 15762), (5254, 15507), (7881, 10338)]