20571837377

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{6421}}^1$

素因数の和:6586

約数の個数: 64

約数和(自身を含む): 28482854400

約数和(自身を除く): 7911017023

約数列:

[1, 7, 13, 17, 19, 91, 109, 119, 133, 221, 247, 323, 763, 1417, 1547, 1729, 1853, 2071, 2261, 4199, 6421, 9919, 12971, 14497, 24089, 26923, 29393, 35207, 44947, 83473, 109157, 121999, 168623, 188461, 246449, 457691, 584311, 699889, 764099, 853993, 1419041, 1585987, 2073983, 3203837, 4899223, 9098557, 9933287, 11101909, 11898113, 13297891, 14517881, 26961779, 63689899, 83286791, 93085237, 154675469, 172872583, 188732453, 226064147, 1082728283, 1210108081, 1582449029, 2938833911, 20571837377]

約数ペア:

[(1, 20571837377), (7, 2938833911), (13, 1582449029), (17, 1210108081), (19, 1082728283), (91, 226064147), (109, 188732453), (119, 172872583), (133, 154675469), (221, 93085237), (247, 83286791), (323, 63689899), (763, 26961779), (1417, 14517881), (1547, 13297891), (1729, 11898113), (1853, 11101909), (2071, 9933287), (2261, 9098557), (4199, 4899223), (6421, 3203837), (9919, 2073983), (12971, 1585987), (14497, 1419041), (24089, 853993), (26923, 764099), (29393, 699889), (35207, 584311), (44947, 457691), (83473, 246449), (109157, 188461), (121999, 168623)]