20901738

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1433}}^1$

素因数の和:1479

約数の個数: 64

約数和(自身を含む): 52036992

約数和(自身を除く): 31135254

約数列:

[1, 2, 3, 6, 11, 13, 17, 22, 26, 33, 34, 39, 51, 66, 78, 102, 143, 187, 221, 286, 374, 429, 442, 561, 663, 858, 1122, 1326, 1433, 2431, 2866, 4299, 4862, 7293, 8598, 14586, 15763, 18629, 24361, 31526, 37258, 47289, 48722, 55887, 73083, 94578, 111774, 146166, 204919, 267971, 316693, 409838, 535942, 614757, 633386, 803913, 950079, 1229514, 1607826, 1900158, 3483623, 6967246, 10450869, 20901738]

約数ペア:

[(1, 20901738), (2, 10450869), (3, 6967246), (6, 3483623), (11, 1900158), (13, 1607826), (17, 1229514), (22, 950079), (26, 803913), (33, 633386), (34, 614757), (39, 535942), (51, 409838), (66, 316693), (78, 267971), (102, 204919), (143, 146166), (187, 111774), (221, 94578), (286, 73083), (374, 55887), (429, 48722), (442, 47289), (561, 37258), (663, 31526), (858, 24361), (1122, 18629), (1326, 15763), (1433, 14586), (2431, 8598), (2866, 7293), (4299, 4862)]