20921417036

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{5477}}^1\times {\mathrm{73459}}^1$

素因数の和:78953

約数の個数: 24

約数和(自身を含む): 39436560240

約数和(自身を除く): 18515143204

約数列:

[1, 2, 4, 13, 26, 52, 5477, 10954, 21908, 71201, 73459, 142402, 146918, 284804, 293836, 954967, 1909934, 3819868, 402334943, 804669886, 1609339772, 5230354259, 10460708518, 20921417036]

約数ペア:

[(1, 20921417036), (2, 10460708518), (4, 5230354259), (13, 1609339772), (26, 804669886), (52, 402334943), (5477, 3819868), (10954, 1909934), (21908, 954967), (71201, 293836), (73459, 284804), (142402, 146918)]