20132973

素因数分解:

$3^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{643}}^1$

素因数の和:734

約数の個数: 36

約数和(自身を含む): 34358688

約数和(自身を除く): 14225715

約数列:

[1, 3, 7, 9, 21, 49, 63, 71, 147, 213, 441, 497, 639, 643, 1491, 1929, 3479, 4473, 4501, 5787, 10437, 13503, 31311, 31507, 40509, 45653, 94521, 136959, 283563, 319571, 410877, 958713, 2236997, 2876139, 6710991, 20132973]

約数ペア:

[(1, 20132973), (3, 6710991), (7, 2876139), (9, 2236997), (21, 958713), (49, 410877), (63, 319571), (71, 283563), (147, 136959), (213, 94521), (441, 45653), (497, 40509), (639, 31507), (643, 31311), (1491, 13503), (1929, 10437), (3479, 5787), (4473, 4501)]