205121301

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{2699}}^1$

素因数の和:2774

約数の個数: 48

約数和(自身を含む): 354585600

約数和(自身を除く): 149464299

約数列:

[1, 3, 7, 11, 21, 33, 47, 49, 77, 141, 147, 231, 329, 517, 539, 987, 1551, 1617, 2303, 2699, 3619, 6909, 8097, 10857, 18893, 25333, 29689, 56679, 75999, 89067, 126853, 132251, 207823, 380559, 396753, 623469, 887971, 1395383, 1454761, 2663913, 4186149, 4364283, 6215797, 9767681, 18647391, 29303043, 68373767, 205121301]

約数ペア:

[(1, 205121301), (3, 68373767), (7, 29303043), (11, 18647391), (21, 9767681), (33, 6215797), (47, 4364283), (49, 4186149), (77, 2663913), (141, 1454761), (147, 1395383), (231, 887971), (329, 623469), (517, 396753), (539, 380559), (987, 207823), (1551, 132251), (1617, 126853), (2303, 89067), (2699, 75999), (3619, 56679), (6909, 29689), (8097, 25333), (10857, 18893)]