18240957

素因数分解:

$3^4\times 7^1\times {\mathrm{53}}^1\times {\mathrm{607}}^1$

素因数の和:679

約数の個数: 40

約数和(自身を含む): 31781376

約数和(自身を除く): 13540419

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 81, 159, 189, 371, 477, 567, 607, 1113, 1431, 1821, 3339, 4249, 4293, 5463, 10017, 12747, 16389, 30051, 32171, 38241, 49167, 96513, 114723, 225197, 289539, 344169, 675591, 868617, 2026773, 2605851, 6080319, 18240957]

約数ペア:

[(1, 18240957), (3, 6080319), (7, 2605851), (9, 2026773), (21, 868617), (27, 675591), (53, 344169), (63, 289539), (81, 225197), (159, 114723), (189, 96513), (371, 49167), (477, 38241), (567, 32171), (607, 30051), (1113, 16389), (1431, 12747), (1821, 10017), (3339, 5463), (4249, 4293)]