20249421

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{563}}^1\times {\mathrm{631}}^1$

素因数の和:1216

約数の個数: 16

約数和(自身を含む): 28515840

約数和(自身を除く): 8266419

約数列:

[1, 3, 19, 57, 563, 631, 1689, 1893, 10697, 11989, 32091, 35967, 355253, 1065759, 6749807, 20249421]

約数ペア:

[(1, 20249421), (3, 6749807), (19, 1065759), (57, 355253), (563, 35967), (631, 32091), (1689, 11989), (1893, 10697)]