20122720107

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{20387761}}^1$

素因数の和:20387818

約数の個数: 16

約数和(自身を含む): 31315602432

約数和(自身を除く): 11192882325

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 20387761, 61163283, 142714327, 428142981, 958224767, 2874674301, 6707573369, 20122720107]

約数ペア:

[(1, 20122720107), (3, 6707573369), (7, 2874674301), (21, 958224767), (47, 428142981), (141, 142714327), (329, 61163283), (987, 20387761)]