81411237

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{491}}^1$

素因数の和:615

約数の個数: 40

約数和(自身を含む): 128589120

約数和(自身を除く): 47177883

約数列:

[1, 3, 9, 23, 27, 69, 81, 89, 207, 267, 491, 621, 801, 1473, 1863, 2047, 2403, 4419, 6141, 7209, 11293, 13257, 18423, 33879, 39771, 43699, 55269, 101637, 131097, 165807, 304911, 393291, 914733, 1005077, 1179873, 3015231, 3539619, 9045693, 27137079, 81411237]

約数ペア:

[(1, 81411237), (3, 27137079), (9, 9045693), (23, 3539619), (27, 3015231), (69, 1179873), (81, 1005077), (89, 914733), (207, 393291), (267, 304911), (491, 165807), (621, 131097), (801, 101637), (1473, 55269), (1863, 43699), (2047, 39771), (2403, 33879), (4419, 18423), (6141, 13257), (7209, 11293)]