12900867

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:216

約数の個数: 48

約数和(自身を含む): 21888000

約数和(自身を除く): 8987133

約数列:

[1, 3, 7, 19, 21, 31, 49, 57, 93, 133, 147, 149, 217, 399, 447, 589, 651, 931, 1043, 1519, 1767, 2793, 2831, 3129, 4123, 4557, 4619, 7301, 8493, 12369, 13857, 19817, 21903, 28861, 32333, 59451, 86583, 87761, 96999, 138719, 226331, 263283, 416157, 614327, 678993, 1842981, 4300289, 12900867]

約数ペア:

[(1, 12900867), (3, 4300289), (7, 1842981), (19, 678993), (21, 614327), (31, 416157), (49, 263283), (57, 226331), (93, 138719), (133, 96999), (147, 87761), (149, 86583), (217, 59451), (399, 32333), (447, 28861), (589, 21903), (651, 19817), (931, 13857), (1043, 12369), (1519, 8493), (1767, 7301), (2793, 4619), (2831, 4557), (3129, 4123)]