20013818

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1069}}^1$

素因数の和:1142

約数の個数: 32

約数和(自身を含む): 35130240

約数和(自身を除く): 15116422

約数列:

[1, 2, 11, 22, 23, 37, 46, 74, 253, 407, 506, 814, 851, 1069, 1702, 2138, 9361, 11759, 18722, 23518, 24587, 39553, 49174, 79106, 270457, 435083, 540914, 870166, 909719, 1819438, 10006909, 20013818]

約数ペア:

[(1, 20013818), (2, 10006909), (11, 1819438), (22, 909719), (23, 870166), (37, 540914), (46, 435083), (74, 270457), (253, 79106), (407, 49174), (506, 39553), (814, 24587), (851, 23518), (1069, 18722), (1702, 11759), (2138, 9361)]