20418618

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{13451}}^1$

素因数の和:13490

約数の個数: 32

約数和(自身を含む): 46490112

約数和(自身を除く): 26071494

約数列:

[1, 2, 3, 6, 11, 22, 23, 33, 46, 66, 69, 138, 253, 506, 759, 1518, 13451, 26902, 40353, 80706, 147961, 295922, 309373, 443883, 618746, 887766, 928119, 1856238, 3403103, 6806206, 10209309, 20418618]

約数ペア:

[(1, 20418618), (2, 10209309), (3, 6806206), (6, 3403103), (11, 1856238), (22, 928119), (23, 887766), (33, 618746), (46, 443883), (66, 309373), (69, 295922), (138, 147961), (253, 80706), (506, 40353), (759, 26902), (1518, 13451)]