20928917

素因数分解:

${\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:284

約数の個数: 16

約数和(自身を含む): 22260480

約数和(自身を除く): 1331563

約数列:

[1, 43, 61, 79, 101, 2623, 3397, 4343, 4819, 6161, 7979, 207217, 264923, 343097, 486719, 20928917]

約数ペア:

[(1, 20928917), (43, 486719), (61, 343097), (79, 264923), (101, 207217), (2623, 7979), (3397, 6161), (4343, 4819)]