21365199

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{751}}^1$

素因数の和:895

約数の個数: 24

約数和(自身を含む): 32260800

約数和(自身を除く): 10895601

約数列:

[1, 3, 9, 29, 87, 109, 261, 327, 751, 981, 2253, 3161, 6759, 9483, 21779, 28449, 65337, 81859, 196011, 245577, 736731, 2373911, 7121733, 21365199]

約数ペア:

[(1, 21365199), (3, 7121733), (9, 2373911), (29, 736731), (87, 245577), (109, 196011), (261, 81859), (327, 65337), (751, 28449), (981, 21779), (2253, 9483), (3161, 6759)]