218974023

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{257}}^1$

素因数の和:493

約数の個数: 40

約数和(自身を含む): 335406192

約数和(自身を除く): 116432169

約数列:

[1, 3, 9, 27, 67, 81, 157, 201, 257, 471, 603, 771, 1413, 1809, 2313, 4239, 5427, 6939, 10519, 12717, 17219, 20817, 31557, 40349, 51657, 94671, 121047, 154971, 284013, 363141, 464913, 852039, 1089423, 1394739, 2703383, 3268269, 8110149, 24330447, 72991341, 218974023]

約数ペア:

[(1, 218974023), (3, 72991341), (9, 24330447), (27, 8110149), (67, 3268269), (81, 2703383), (157, 1394739), (201, 1089423), (257, 852039), (471, 464913), (603, 363141), (771, 284013), (1413, 154971), (1809, 121047), (2313, 94671), (4239, 51657), (5427, 40349), (6939, 31557), (10519, 20817), (12717, 17219)]