81131988

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{965857}}^1$

素因数の和:965871

約数の個数: 24

約数和(自身を含む): 216352192

約数和(自身を除く): 135220204

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 965857, 1931714, 2897571, 3863428, 5795142, 6760999, 11590284, 13521998, 20282997, 27043996, 40565994, 81131988]

約数ペア:

[(1, 81131988), (2, 40565994), (3, 27043996), (4, 20282997), (6, 13521998), (7, 11590284), (12, 6760999), (14, 5795142), (21, 3863428), (28, 2897571), (42, 1931714), (84, 965857)]