18089973

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1$

素因数の和:359

約数の個数: 40

約数和(自身を含む): 29969280

約数和(自身を除く): 11879307

約数列:

[1, 3, 9, 11, 27, 33, 79, 81, 99, 237, 257, 297, 711, 771, 869, 891, 2133, 2313, 2607, 2827, 6399, 6939, 7821, 8481, 20303, 20817, 23463, 25443, 60909, 70389, 76329, 182727, 223333, 228987, 548181, 669999, 1644543, 2009997, 6029991, 18089973]

約数ペア:

[(1, 18089973), (3, 6029991), (9, 2009997), (11, 1644543), (27, 669999), (33, 548181), (79, 228987), (81, 223333), (99, 182727), (237, 76329), (257, 70389), (297, 60909), (711, 25443), (771, 23463), (869, 20817), (891, 20303), (2133, 8481), (2313, 7821), (2607, 6939), (2827, 6399)]