20819988

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{82619}}^1$

素因数の和:82636

約数の個数: 36

約数和(自身を含む): 60147360

約数和(自身を除く): 39327372

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 82619, 165238, 247857, 330476, 495714, 578333, 743571, 991428, 1156666, 1487142, 1734999, 2313332, 2974284, 3469998, 5204997, 6939996, 10409994, 20819988]

約数ペア:

[(1, 20819988), (2, 10409994), (3, 6939996), (4, 5204997), (6, 3469998), (7, 2974284), (9, 2313332), (12, 1734999), (14, 1487142), (18, 1156666), (21, 991428), (28, 743571), (36, 578333), (42, 495714), (63, 330476), (84, 247857), (126, 165238), (252, 82619)]