1900986489

素因数分解:

$3^4\times {\mathrm{3251}}^1\times {\mathrm{7219}}^1$

素因数の和:10482

約数の個数: 20

約数和(自身を含む): 2841012240

約数和(自身を除く): 940025751

約数列:

[1, 3, 9, 27, 81, 3251, 7219, 9753, 21657, 29259, 64971, 87777, 194913, 263331, 584739, 23468969, 70406907, 211220721, 633662163, 1900986489]

約数ペア:

[(1, 1900986489), (3, 633662163), (9, 211220721), (27, 70406907), (81, 23468969), (3251, 584739), (7219, 263331), (9753, 194913), (21657, 87777), (29259, 64971)]