210371985

素因数分解:

$3^4\times 5^1\times {\mathrm{521}}^1\times {\mathrm{997}}^1$

素因数の和:1535

約数の個数: 40

約数和(自身を含む): 378214056

約数和(自身を除く): 167842071

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 521, 997, 1563, 2605, 2991, 4689, 4985, 7815, 8973, 14067, 14955, 23445, 26919, 42201, 44865, 70335, 80757, 134595, 211005, 403785, 519437, 1558311, 2597185, 4674933, 7791555, 14024799, 23374665, 42074397, 70123995, 210371985]

約数ペア:

[(1, 210371985), (3, 70123995), (5, 42074397), (9, 23374665), (15, 14024799), (27, 7791555), (45, 4674933), (81, 2597185), (135, 1558311), (405, 519437), (521, 403785), (997, 211005), (1563, 134595), (2605, 80757), (2991, 70335), (4689, 44865), (4985, 42201), (7815, 26919), (8973, 23445), (14067, 14955)]