18408978

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1571}}^1$

素因数の和:1620

約数の個数: 64

約数和(自身を含む): 48291840

約数和(自身を除く): 29882862

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 31, 42, 54, 62, 63, 93, 126, 186, 189, 217, 279, 378, 434, 558, 651, 837, 1302, 1571, 1674, 1953, 3142, 3906, 4713, 5859, 9426, 10997, 11718, 14139, 21994, 28278, 32991, 42417, 48701, 65982, 84834, 97402, 98973, 146103, 197946, 292206, 296919, 340907, 438309, 593838, 681814, 876618, 1022721, 1314927, 2045442, 2629854, 3068163, 6136326, 9204489, 18408978]

約数ペア:

[(1, 18408978), (2, 9204489), (3, 6136326), (6, 3068163), (7, 2629854), (9, 2045442), (14, 1314927), (18, 1022721), (21, 876618), (27, 681814), (31, 593838), (42, 438309), (54, 340907), (62, 296919), (63, 292206), (93, 197946), (126, 146103), (186, 98973), (189, 97402), (217, 84834), (279, 65982), (378, 48701), (434, 42417), (558, 32991), (651, 28278), (837, 21994), (1302, 14139), (1571, 11718), (1674, 10997), (1953, 9426), (3142, 5859), (3906, 4713)]