20564991

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{797}}^1$

素因数の和:911

約数の個数: 24

約数和(自身を含む): 30873024

約数和(自身を除く): 10308033

約数列:

[1, 3, 9, 47, 61, 141, 183, 423, 549, 797, 2391, 2867, 7173, 8601, 25803, 37459, 48617, 112377, 145851, 337131, 437553, 2284999, 6854997, 20564991]

約数ペア:

[(1, 20564991), (3, 6854997), (9, 2284999), (47, 437553), (61, 337131), (141, 145851), (183, 112377), (423, 48617), (549, 37459), (797, 25803), (2391, 8601), (2867, 7173)]