215512689

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1$

素因数の和:310

約数の個数: 64

約数和(自身を含む): 361912320

約数和(自身を除く): 146399631

約数列:

[1, 3, 7, 17, 21, 43, 51, 101, 119, 129, 139, 301, 303, 357, 417, 707, 731, 903, 973, 1717, 2121, 2193, 2363, 2919, 4343, 5117, 5151, 5977, 7089, 12019, 13029, 14039, 15351, 16541, 17931, 30401, 36057, 41839, 42117, 49623, 73831, 91203, 98273, 101609, 125517, 221493, 238663, 294819, 304827, 516817, 603677, 711263, 715989, 1550451, 1670641, 1811031, 2133789, 4225739, 5011923, 10262509, 12677217, 30787527, 71837563, 215512689]

約数ペア:

[(1, 215512689), (3, 71837563), (7, 30787527), (17, 12677217), (21, 10262509), (43, 5011923), (51, 4225739), (101, 2133789), (119, 1811031), (129, 1670641), (139, 1550451), (301, 715989), (303, 711263), (357, 603677), (417, 516817), (707, 304827), (731, 294819), (903, 238663), (973, 221493), (1717, 125517), (2121, 101609), (2193, 98273), (2363, 91203), (2919, 73831), (4343, 49623), (5117, 42117), (5151, 41839), (5977, 36057), (7089, 30401), (12019, 17931), (13029, 16541), (14039, 15351)]