20648243

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{1171}}^1$

素因数の和:1418

約数の個数: 16

約数和(自身を含む): 25877760

約数和(自身を除く): 5229517

約数列:

[1, 7, 11, 77, 229, 1171, 1603, 2519, 8197, 12881, 17633, 90167, 268159, 1877113, 2949749, 20648243]

約数ペア:

[(1, 20648243), (7, 2949749), (11, 1877113), (77, 268159), (229, 90167), (1171, 17633), (1603, 12881), (2519, 8197)]