21644415

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4111}}^1$

素因数の和:4141

約数の個数: 40

約数和(自身を含む): 41794368

約数和(自身を除く): 20149953

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 195, 351, 405, 585, 1053, 1755, 4111, 5265, 12333, 20555, 36999, 53443, 61665, 110997, 160329, 184995, 267215, 332991, 480987, 554985, 801645, 1442961, 1664955, 2404935, 4328883, 7214805, 21644415]

約数ペア:

[(1, 21644415), (3, 7214805), (5, 4328883), (9, 2404935), (13, 1664955), (15, 1442961), (27, 801645), (39, 554985), (45, 480987), (65, 332991), (81, 267215), (117, 184995), (135, 160329), (195, 110997), (351, 61665), (405, 53443), (585, 36999), (1053, 20555), (1755, 12333), (4111, 5265)]