20725438

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{8501}}^1$

素因数の和:8579

約数の個数: 16

約数和(自身を含む): 33055776

約数和(自身を除く): 12330338

約数列:

[1, 2, 23, 46, 53, 106, 1219, 2438, 8501, 17002, 195523, 391046, 450553, 901106, 10362719, 20725438]

約数ペア:

[(1, 20725438), (2, 10362719), (23, 901106), (46, 450553), (53, 391046), (106, 195523), (1219, 17002), (2438, 8501)]