78231321

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{977}}^1$

素因数の和:1062

約数の個数: 48

約数和(自身を含む): 136700928

約数和(自身を除く): 58469607

約数列:

[1, 3, 7, 9, 21, 31, 41, 63, 93, 123, 217, 279, 287, 369, 651, 861, 977, 1271, 1953, 2583, 2931, 3813, 6839, 8793, 8897, 11439, 20517, 26691, 30287, 40057, 61551, 80073, 90861, 120171, 212009, 272583, 280399, 360513, 636027, 841197, 1241767, 1908081, 2523591, 3725301, 8692369, 11175903, 26077107, 78231321]

約数ペア:

[(1, 78231321), (3, 26077107), (7, 11175903), (9, 8692369), (21, 3725301), (31, 2523591), (41, 1908081), (63, 1241767), (93, 841197), (123, 636027), (217, 360513), (279, 280399), (287, 272583), (369, 212009), (651, 120171), (861, 90861), (977, 80073), (1271, 61551), (1953, 40057), (2583, 30287), (2931, 26691), (3813, 20517), (6839, 11439), (8793, 8897)]