21621357

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{941}}^1$

素因数の和:1010

約数の個数: 32

約数和(自身を含む): 34364160

約数和(自身を除く): 12742803

約数列:

[1, 3, 9, 23, 27, 37, 69, 111, 207, 333, 621, 851, 941, 999, 2553, 2823, 7659, 8469, 21643, 22977, 25407, 34817, 64929, 104451, 194787, 313353, 584361, 800791, 940059, 2402373, 7207119, 21621357]

約数ペア:

[(1, 21621357), (3, 7207119), (9, 2402373), (23, 940059), (27, 800791), (37, 584361), (69, 313353), (111, 194787), (207, 104451), (333, 64929), (621, 34817), (851, 25407), (941, 22977), (999, 21643), (2553, 8469), (2823, 7659)]