20723989

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{6301}}^1$

素因数の和:6348

約数の個数: 16

約数和(自身を含む): 25409664

約数和(自身を除く): 4685675

約数列:

[1, 11, 13, 23, 143, 253, 299, 3289, 6301, 69311, 81913, 144923, 901043, 1594153, 1883999, 20723989]

約数ペア:

[(1, 20723989), (11, 1883999), (13, 1594153), (23, 901043), (143, 144923), (253, 81913), (299, 69311), (3289, 6301)]