18987966

素因数分解:

$2^1\times 3^3\times {\mathrm{79}}^1\times {\mathrm{4451}}^1$

素因数の和:4541

約数の個数: 32

約数和(自身を含む): 42739200

約数和(自身を除く): 23751234

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 79, 158, 237, 474, 711, 1422, 2133, 4266, 4451, 8902, 13353, 26706, 40059, 80118, 120177, 240354, 351629, 703258, 1054887, 2109774, 3164661, 6329322, 9493983, 18987966]

約数ペア:

[(1, 18987966), (2, 9493983), (3, 6329322), (6, 3164661), (9, 2109774), (18, 1054887), (27, 703258), (54, 351629), (79, 240354), (158, 120177), (237, 80118), (474, 40059), (711, 26706), (1422, 13353), (2133, 8902), (4266, 4451)]