81047862

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{2137}}^1$

素因数の和:2202

約数の個数: 72

約数和(自身を含む): 209122056

約数和(自身を除く): 128074194

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 43, 49, 63, 86, 98, 126, 129, 147, 258, 294, 301, 387, 441, 602, 774, 882, 903, 1806, 2107, 2137, 2709, 4214, 4274, 5418, 6321, 6411, 12642, 12822, 14959, 18963, 19233, 29918, 37926, 38466, 44877, 89754, 91891, 104713, 134631, 183782, 209426, 269262, 275673, 314139, 551346, 628278, 643237, 827019, 942417, 1286474, 1654038, 1884834, 1929711, 3859422, 4502659, 5789133, 9005318, 11578266, 13507977, 27015954, 40523931, 81047862]

約数ペア:

[(1, 81047862), (2, 40523931), (3, 27015954), (6, 13507977), (7, 11578266), (9, 9005318), (14, 5789133), (18, 4502659), (21, 3859422), (42, 1929711), (43, 1884834), (49, 1654038), (63, 1286474), (86, 942417), (98, 827019), (126, 643237), (129, 628278), (147, 551346), (258, 314139), (294, 275673), (301, 269262), (387, 209426), (441, 183782), (602, 134631), (774, 104713), (882, 91891), (903, 89754), (1806, 44877), (2107, 38466), (2137, 37926), (2709, 29918), (4214, 19233), (4274, 18963), (5418, 14959), (6321, 12822), (6411, 12642)]