81295731

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{3967}}^1$

素因数の和:4013

約数の個数: 40

約数和(自身を含む): 138276864

約数和(自身を除く): 56981133

約数列:

[1, 3, 9, 11, 23, 27, 33, 69, 81, 99, 207, 253, 297, 621, 759, 891, 1863, 2277, 3967, 6831, 11901, 20493, 35703, 43637, 91241, 107109, 130911, 273723, 321327, 392733, 821169, 1003651, 1178199, 2463507, 3010953, 3534597, 7390521, 9032859, 27098577, 81295731]

約数ペア:

[(1, 81295731), (3, 27098577), (9, 9032859), (11, 7390521), (23, 3534597), (27, 3010953), (33, 2463507), (69, 1178199), (81, 1003651), (99, 821169), (207, 392733), (253, 321327), (297, 273723), (621, 130911), (759, 107109), (891, 91241), (1863, 43637), (2277, 35703), (3967, 20493), (6831, 11901)]