1309689

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1$

素因数の和:91

約数の個数: 40

約数和(自身を含む): 2207040

約数和(自身を除く): 897351

約数列:

[1, 3, 9, 19, 23, 27, 37, 57, 69, 81, 111, 171, 207, 333, 437, 513, 621, 703, 851, 999, 1311, 1539, 1863, 2109, 2553, 2997, 3933, 6327, 7659, 11799, 16169, 18981, 22977, 35397, 48507, 56943, 68931, 145521, 436563, 1309689]

約数ペア:

[(1, 1309689), (3, 436563), (9, 145521), (19, 68931), (23, 56943), (27, 48507), (37, 35397), (57, 22977), (69, 18981), (81, 16169), (111, 11799), (171, 7659), (207, 6327), (333, 3933), (437, 2997), (513, 2553), (621, 2109), (703, 1863), (851, 1539), (999, 1311)]