17987004

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{521}}^1$

素因数の和:675

約数の個数: 72

約数和(自身を含む): 52442208

約数和(自身を除く): 34455204

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 137, 252, 274, 411, 521, 548, 822, 959, 1042, 1233, 1563, 1644, 1918, 2084, 2466, 2877, 3126, 3647, 3836, 4689, 4932, 5754, 6252, 7294, 8631, 9378, 10941, 11508, 14588, 17262, 18756, 21882, 32823, 34524, 43764, 65646, 71377, 131292, 142754, 214131, 285508, 428262, 499639, 642393, 856524, 999278, 1284786, 1498917, 1998556, 2569572, 2997834, 4496751, 5995668, 8993502, 17987004]

約数ペア:

[(1, 17987004), (2, 8993502), (3, 5995668), (4, 4496751), (6, 2997834), (7, 2569572), (9, 1998556), (12, 1498917), (14, 1284786), (18, 999278), (21, 856524), (28, 642393), (36, 499639), (42, 428262), (63, 285508), (84, 214131), (126, 142754), (137, 131292), (252, 71377), (274, 65646), (411, 43764), (521, 34524), (548, 32823), (822, 21882), (959, 18756), (1042, 17262), (1233, 14588), (1563, 11508), (1644, 10941), (1918, 9378), (2084, 8631), (2466, 7294), (2877, 6252), (3126, 5754), (3647, 4932), (3836, 4689)]