81215386

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{503}}^1\times {\mathrm{607}}^1$

素因数の和:1138

約数の個数: 32

約数和(自身を含む): 147087360

約数和(自身を除く): 65871974

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 503, 607, 1006, 1214, 3521, 4249, 7042, 8498, 9557, 11533, 19114, 23066, 66899, 80731, 133798, 161462, 305321, 610642, 2137247, 4274494, 5801099, 11602198, 40607693, 81215386]

約数ペア:

[(1, 81215386), (2, 40607693), (7, 11602198), (14, 5801099), (19, 4274494), (38, 2137247), (133, 610642), (266, 305321), (503, 161462), (607, 133798), (1006, 80731), (1214, 66899), (3521, 23066), (4249, 19114), (7042, 11533), (8498, 9557)]