20731071

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{443}}^1\times {\mathrm{821}}^1$

素因数の和:1286

約数の個数: 16

約数和(自身を含む): 29197440

約数和(自身を除く): 8466369

約数列:

[1, 3, 19, 57, 443, 821, 1329, 2463, 8417, 15599, 25251, 46797, 363703, 1091109, 6910357, 20731071]

約数ペア:

[(1, 20731071), (3, 6910357), (19, 1091109), (57, 363703), (443, 46797), (821, 25251), (1329, 15599), (2463, 8417)]