81665739

素因数分解:

$3^5\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{373}}^1$

素因数の和:458

約数の個数: 48

約数和(自身を含む): 132324192

約数和(自身を除く): 50658453

約数列:

[1, 3, 9, 17, 27, 51, 53, 81, 153, 159, 243, 373, 459, 477, 901, 1119, 1377, 1431, 2703, 3357, 4131, 4293, 6341, 8109, 10071, 12879, 19023, 19769, 24327, 30213, 57069, 59307, 72981, 90639, 171207, 177921, 218943, 336073, 513621, 533763, 1008219, 1540863, 1601289, 3024657, 4803867, 9073971, 27221913, 81665739]

約数ペア:

[(1, 81665739), (3, 27221913), (9, 9073971), (17, 4803867), (27, 3024657), (51, 1601289), (53, 1540863), (81, 1008219), (153, 533763), (159, 513621), (243, 336073), (373, 218943), (459, 177921), (477, 171207), (901, 90639), (1119, 72981), (1377, 59307), (1431, 57069), (2703, 30213), (3357, 24327), (4131, 19769), (4293, 19023), (6341, 12879), (8109, 10071)]