20699539

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{229}}^1\times {\mathrm{349}}^1$

素因数の和:622

約数の個数: 16

約数和(自身を含む): 24472000

約数和(自身を除く): 3772461

約数列:

[1, 7, 37, 229, 259, 349, 1603, 2443, 8473, 12913, 59311, 79921, 90391, 559447, 2957077, 20699539]

約数ペア:

[(1, 20699539), (7, 2957077), (37, 559447), (229, 90391), (259, 79921), (349, 59311), (1603, 12913), (2443, 8473)]