20514513

素因数分解:

$3^1\times {\mathrm{29}}^2\times {\mathrm{47}}^1\times {\mathrm{173}}^1$

素因数の和:281

約数の個数: 24

約数和(自身を含む): 29098368

約数和(自身を除く): 8583855

約数列:

[1, 3, 29, 47, 87, 141, 173, 519, 841, 1363, 2523, 4089, 5017, 8131, 15051, 24393, 39527, 118581, 145493, 235799, 436479, 707397, 6838171, 20514513]

約数ペア:

[(1, 20514513), (3, 6838171), (29, 707397), (47, 436479), (87, 235799), (141, 145493), (173, 118581), (519, 39527), (841, 24393), (1363, 15051), (2523, 8131), (4089, 5017)]