20897644

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{2099}}^1$

素因数の和:2253

約数の個数: 24

約数和(自身を含む): 38808000

約数和(自身を除く): 17910356

約数列:

[1, 2, 4, 19, 38, 76, 131, 262, 524, 2099, 2489, 4198, 4978, 8396, 9956, 39881, 79762, 159524, 274969, 549938, 1099876, 5224411, 10448822, 20897644]

約数ペア:

[(1, 20897644), (2, 10448822), (4, 5224411), (19, 1099876), (38, 549938), (76, 274969), (131, 159524), (262, 79762), (524, 39881), (2099, 9956), (2489, 8396), (4198, 4978)]