1216331379

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{397}}^1$

素因数の和:505

約数の個数: 72

約数和(自身を含む): 1987064352

約数和(自身を除く): 770732973

約数列:

[1, 3, 9, 19, 23, 41, 57, 69, 123, 171, 207, 361, 369, 397, 437, 779, 943, 1083, 1191, 1311, 2337, 2829, 3249, 3573, 3933, 7011, 7543, 8303, 8487, 9131, 14801, 16277, 17917, 22629, 24909, 27393, 44403, 48831, 53751, 67887, 74727, 82179, 133209, 143317, 146493, 161253, 173489, 309263, 340423, 374371, 429951, 520467, 927789, 1021269, 1123113, 1289853, 1561401, 2783367, 3063807, 3296291, 3369339, 5875997, 7113049, 9888873, 17627991, 21339147, 29666619, 52883973, 64017441, 135147931, 405443793, 1216331379]

約数ペア:

[(1, 1216331379), (3, 405443793), (9, 135147931), (19, 64017441), (23, 52883973), (41, 29666619), (57, 21339147), (69, 17627991), (123, 9888873), (171, 7113049), (207, 5875997), (361, 3369339), (369, 3296291), (397, 3063807), (437, 2783367), (779, 1561401), (943, 1289853), (1083, 1123113), (1191, 1021269), (1311, 927789), (2337, 520467), (2829, 429951), (3249, 374371), (3573, 340423), (3933, 309263), (7011, 173489), (7543, 161253), (8303, 146493), (8487, 143317), (9131, 133209), (14801, 82179), (16277, 74727), (17917, 67887), (22629, 53751), (24909, 48831), (27393, 44403)]