249780213

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{1471}}^1$

素因数の和:1830

約数の個数: 32

約数和(自身を含む): 390963200

約数和(自身を除く): 141182987

約数列:

[1, 3, 9, 19, 27, 57, 171, 331, 513, 993, 1471, 2979, 4413, 6289, 8937, 13239, 18867, 27949, 39717, 56601, 83847, 169803, 251541, 486901, 754623, 1460703, 4382109, 9251119, 13146327, 27753357, 83260071, 249780213]

約数ペア:

[(1, 249780213), (3, 83260071), (9, 27753357), (19, 13146327), (27, 9251119), (57, 4382109), (171, 1460703), (331, 754623), (513, 486901), (993, 251541), (1471, 169803), (2979, 83847), (4413, 56601), (6289, 39717), (8937, 27949), (13239, 18867)]