72991341

素因数分解:

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

素因数の和:490

約数の個数: 32

約数和(自身を含む): 110878080

約数和(自身を除く): 37886739

約数列:

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

約数ペア:

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