19902597

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2729}}^1$

素因数の和:2773

約数の個数: 32

約数和(自身を含む): 33022080

約数和(自身を除く): 13119483

約数列:

[1, 3, 11, 13, 17, 33, 39, 51, 143, 187, 221, 429, 561, 663, 2431, 2729, 7293, 8187, 30019, 35477, 46393, 90057, 106431, 139179, 390247, 510323, 603109, 1170741, 1530969, 1809327, 6634199, 19902597]

約数ペア:

[(1, 19902597), (3, 6634199), (11, 1809327), (13, 1530969), (17, 1170741), (33, 603109), (39, 510323), (51, 390247), (143, 139179), (187, 106431), (221, 90057), (429, 46393), (561, 35477), (663, 30019), (2431, 8187), (2729, 7293)]