21447071541

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{953}}^1\times {\mathrm{2089}}^1$

素因数の和:3080

約数の個数: 80

約数和(自身を含む): 38601129600

約数和(自身を除く): 17154058059

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 81, 133, 171, 189, 399, 513, 567, 953, 1197, 1539, 2089, 2859, 3591, 6267, 6671, 8577, 10773, 14623, 18107, 18801, 20013, 25731, 39691, 43869, 54321, 56403, 60039, 77193, 119073, 126749, 131607, 162963, 169209, 180117, 277837, 357219, 380247, 394821, 488889, 540351, 833511, 1071657, 1140741, 1184463, 1466667, 1990817, 2500533, 3214971, 3422223, 5972451, 7501599, 10266669, 13935719, 17917353, 22504797, 37825523, 41807157, 53752059, 113476569, 125421471, 161256177, 264778661, 340429707, 376264413, 794335983, 1021289121, 1128793239, 2383007949, 3063867363, 7149023847, 21447071541]

約数ペア:

[(1, 21447071541), (3, 7149023847), (7, 3063867363), (9, 2383007949), (19, 1128793239), (21, 1021289121), (27, 794335983), (57, 376264413), (63, 340429707), (81, 264778661), (133, 161256177), (171, 125421471), (189, 113476569), (399, 53752059), (513, 41807157), (567, 37825523), (953, 22504797), (1197, 17917353), (1539, 13935719), (2089, 10266669), (2859, 7501599), (3591, 5972451), (6267, 3422223), (6671, 3214971), (8577, 2500533), (10773, 1990817), (14623, 1466667), (18107, 1184463), (18801, 1140741), (20013, 1071657), (25731, 833511), (39691, 540351), (43869, 488889), (54321, 394821), (56403, 380247), (60039, 357219), (77193, 277837), (119073, 180117), (126749, 169209), (131607, 162963)]