21051576009

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{34911403}}^1$

素因数の和:34911476

約数の個数: 12

約数和(自身を含む): 30861681136

約数和(自身を除く): 9810105127

約数列:

[1, 3, 9, 67, 201, 603, 34911403, 104734209, 314202627, 2339064001, 7017192003, 21051576009]

約数ペア:

[(1, 21051576009), (3, 7017192003), (9, 2339064001), (67, 314202627), (201, 104734209), (603, 34911403)]