209934981

素因数分解:

$3^2\times {\mathrm{109}}^1\times {\mathrm{173}}^1\times {\mathrm{1237}}^1$

素因数の和:1525

約数の個数: 24

約数和(自身を含む): 308039160

約数和(自身を除く): 98104179

約数列:

[1, 3, 9, 109, 173, 327, 519, 981, 1237, 1557, 3711, 11133, 18857, 56571, 134833, 169713, 214001, 404499, 642003, 1213497, 1926009, 23326109, 69978327, 209934981]

約数ペア:

[(1, 209934981), (3, 69978327), (9, 23326109), (109, 1926009), (173, 1213497), (327, 642003), (519, 404499), (981, 214001), (1237, 169713), (1557, 134833), (3711, 56571), (11133, 18857)]