20556686

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{2179}}^1$

素因数の和:2323

約数の個数: 16

約数和(自身を含む): 31784400

約数和(自身を除く): 11227714

約数列:

[1, 2, 53, 89, 106, 178, 2179, 4358, 4717, 9434, 115487, 193931, 230974, 387862, 10278343, 20556686]

約数ペア:

[(1, 20556686), (2, 10278343), (53, 387862), (89, 230974), (106, 193931), (178, 115487), (2179, 9434), (4358, 4717)]