189872067

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{2113}}^1$

素因数の和:2523

約数の個数: 32

約数和(自身を含む): 316592640

約数和(自身を除く): 126720573

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 389, 1167, 2113, 2723, 4279, 6339, 8169, 12837, 14791, 23243, 29953, 44373, 69729, 89859, 162701, 488103, 821957, 2465871, 5753699, 9041527, 17261097, 27124581, 63290689, 189872067]

約数ペア:

[(1, 189872067), (3, 63290689), (7, 27124581), (11, 17261097), (21, 9041527), (33, 5753699), (77, 2465871), (231, 821957), (389, 488103), (1167, 162701), (2113, 89859), (2723, 69729), (4279, 44373), (6339, 29953), (8169, 23243), (12837, 14791)]