209515527

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{307}}^2$

素因数の和:652

約数の個数: 36

約数和(自身を含む): 344187480

約数和(自身を除く): 134671953

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 307, 741, 921, 2223, 2763, 3991, 5833, 11973, 17499, 35919, 52497, 75829, 94249, 227487, 282747, 682461, 848241, 1225237, 1790731, 3675711, 5372193, 11027133, 16116579, 23279503, 69838509, 209515527]

約数ペア:

[(1, 209515527), (3, 69838509), (9, 23279503), (13, 16116579), (19, 11027133), (39, 5372193), (57, 3675711), (117, 1790731), (171, 1225237), (247, 848241), (307, 682461), (741, 282747), (921, 227487), (2223, 94249), (2763, 75829), (3991, 52497), (5833, 35919), (11973, 17499)]