20421258

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23801}}^1$

素因数の和:23830

約数の個数: 32

約数和(自身を含む): 47984832

約数和(自身を除く): 27563574

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 143, 286, 429, 858, 23801, 47602, 71403, 142806, 261811, 309413, 523622, 618826, 785433, 928239, 1570866, 1856478, 3403543, 6807086, 10210629, 20421258]

約数ペア:

[(1, 20421258), (2, 10210629), (3, 6807086), (6, 3403543), (11, 1856478), (13, 1570866), (22, 928239), (26, 785433), (33, 618826), (39, 523622), (66, 309413), (78, 261811), (143, 142806), (286, 71403), (429, 47602), (858, 23801)]