218866293

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{863}}^1$

素因数の和:1007

約数の個数: 40

約数和(自身を含む): 341231616

約数和(自身を除く): 122365323

約数列:

[1, 3, 9, 27, 31, 81, 93, 101, 279, 303, 837, 863, 909, 2511, 2589, 2727, 3131, 7767, 8181, 9393, 23301, 26753, 28179, 69903, 80259, 84537, 87163, 240777, 253611, 261489, 722331, 784467, 2166993, 2353401, 2702053, 7060203, 8106159, 24318477, 72955431, 218866293]

約数ペア:

[(1, 218866293), (3, 72955431), (9, 24318477), (27, 8106159), (31, 7060203), (81, 2702053), (93, 2353401), (101, 2166993), (279, 784467), (303, 722331), (837, 261489), (863, 253611), (909, 240777), (2511, 87163), (2589, 84537), (2727, 80259), (3131, 69903), (7767, 28179), (8181, 26753), (9393, 23301)]