20824405

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1129}}^1$

素因数の和:1189

約数の個数: 32

約数和(自身を含む): 31242240

約数和(自身を除く): 10417835

約数列:

[1, 5, 7, 17, 31, 35, 85, 119, 155, 217, 527, 595, 1085, 1129, 2635, 3689, 5645, 7903, 18445, 19193, 34999, 39515, 95965, 134351, 174995, 244993, 594983, 671755, 1224965, 2974915, 4164881, 20824405]

約数ペア:

[(1, 20824405), (5, 4164881), (7, 2974915), (17, 1224965), (31, 671755), (35, 594983), (85, 244993), (119, 174995), (155, 134351), (217, 95965), (527, 39515), (595, 34999), (1085, 19193), (1129, 18445), (2635, 7903), (3689, 5645)]