211820408

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1249}}^1$

素因数の和:1344

約数の個数: 64

約数和(自身を含む): 445500000

約数和(自身を除く): 233679592

約数列:

[1, 2, 4, 8, 17, 29, 34, 43, 58, 68, 86, 116, 136, 172, 232, 344, 493, 731, 986, 1247, 1249, 1462, 1972, 2494, 2498, 2924, 3944, 4988, 4996, 5848, 9976, 9992, 21199, 21233, 36221, 42398, 42466, 53707, 72442, 84796, 84932, 107414, 144884, 169592, 169864, 214828, 289768, 429656, 615757, 913019, 1231514, 1557503, 1826038, 2463028, 3115006, 3652076, 4926056, 6230012, 7304152, 12460024, 26477551, 52955102, 105910204, 211820408]

約数ペア:

[(1, 211820408), (2, 105910204), (4, 52955102), (8, 26477551), (17, 12460024), (29, 7304152), (34, 6230012), (43, 4926056), (58, 3652076), (68, 3115006), (86, 2463028), (116, 1826038), (136, 1557503), (172, 1231514), (232, 913019), (344, 615757), (493, 429656), (731, 289768), (986, 214828), (1247, 169864), (1249, 169592), (1462, 144884), (1972, 107414), (2494, 84932), (2498, 84796), (2924, 72442), (3944, 53707), (4988, 42466), (4996, 42398), (5848, 36221), (9976, 21233), (9992, 21199)]