20015566

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{4889}}^1$

素因数の和:5003

約数の個数: 16

約数和(自身を含む): 31687200

約数和(自身を除く): 11671634

約数列:

[1, 2, 23, 46, 89, 178, 2047, 4094, 4889, 9778, 112447, 224894, 435121, 870242, 10007783, 20015566]

約数ペア:

[(1, 20015566), (2, 10007783), (23, 870242), (46, 435121), (89, 224894), (178, 112447), (2047, 9778), (4094, 4889)]