217414071

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{431}}^1$

素因数の和:621

約数の個数: 64

約数和(自身を含む): 393154560

約数和(自身を除く): 175740489

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 119, 153, 157, 189, 357, 431, 459, 471, 1071, 1099, 1293, 1413, 2669, 3017, 3213, 3297, 3879, 4239, 7327, 8007, 9051, 9891, 11637, 18683, 21981, 24021, 27153, 29673, 51289, 56049, 65943, 67667, 72063, 81459, 153867, 168147, 197829, 203001, 461601, 473669, 504441, 609003, 1150339, 1384803, 1421007, 1827009, 3451017, 4263021, 8052373, 10353051, 12789063, 24157119, 31059153, 72471357, 217414071]

約数ペア:

[(1, 217414071), (3, 72471357), (7, 31059153), (9, 24157119), (17, 12789063), (21, 10353051), (27, 8052373), (51, 4263021), (63, 3451017), (119, 1827009), (153, 1421007), (157, 1384803), (189, 1150339), (357, 609003), (431, 504441), (459, 473669), (471, 461601), (1071, 203001), (1099, 197829), (1293, 168147), (1413, 153867), (2669, 81459), (3017, 72063), (3213, 67667), (3297, 65943), (3879, 56049), (4239, 51289), (7327, 29673), (8007, 27153), (9051, 24021), (9891, 21981), (11637, 18683)]