209900537

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{281}}^1$

素因数の和:497

約数の個数: 32

約数和(自身を含む): 268012800

約数和(自身を除く): 58112263

約数列:

[1, 7, 11, 77, 89, 109, 281, 623, 763, 979, 1199, 1967, 3091, 6853, 8393, 9701, 21637, 25009, 30629, 67907, 106711, 175063, 214403, 275099, 336919, 746977, 1925693, 2358433, 2725981, 19081867, 29985791, 209900537]

約数ペア:

[(1, 209900537), (7, 29985791), (11, 19081867), (77, 2725981), (89, 2358433), (109, 1925693), (281, 746977), (623, 336919), (763, 275099), (979, 214403), (1199, 175063), (1967, 106711), (3091, 67907), (6853, 30629), (8393, 25009), (9701, 21637)]