21069916

素因数分解:

$2^2\times 7^1\times {\mathrm{283}}^1\times {\mathrm{2659}}^1$

素因数の和:2953

約数の個数: 24

約数和(自身を含む): 42304640

約数和(自身を除く): 21234724

約数列:

[1, 2, 4, 7, 14, 28, 283, 566, 1132, 1981, 2659, 3962, 5318, 7924, 10636, 18613, 37226, 74452, 752497, 1504994, 3009988, 5267479, 10534958, 21069916]

約数ペア:

[(1, 21069916), (2, 10534958), (4, 5267479), (7, 3009988), (14, 1504994), (28, 752497), (283, 74452), (566, 37226), (1132, 18613), (1981, 10636), (2659, 7924), (3962, 5318)]