216747585

素因数分解:

$3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{65981}}^1$

素因数の和:66065

約数の個数: 24

約数和(自身を含む): 380848104

約数和(自身を除く): 164100519

約数列:

[1, 3, 5, 9, 15, 45, 73, 219, 365, 657, 1095, 3285, 65981, 197943, 329905, 593829, 989715, 2969145, 4816613, 14449839, 24083065, 43349517, 72249195, 216747585]

約数ペア:

[(1, 216747585), (3, 72249195), (5, 43349517), (9, 24083065), (15, 14449839), (45, 4816613), (73, 2969145), (219, 989715), (365, 593829), (657, 329905), (1095, 197943), (3285, 65981)]