20452473

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1$

素因数の和:354

約数の個数: 32

約数和(自身を含む): 31518720

約数和(自身を除く): 11066247

約数列:

[1, 3, 9, 27, 47, 71, 141, 213, 227, 423, 639, 681, 1269, 1917, 2043, 3337, 6129, 10011, 10669, 16117, 30033, 32007, 48351, 90099, 96021, 145053, 288063, 435159, 757499, 2272497, 6817491, 20452473]

約数ペア:

[(1, 20452473), (3, 6817491), (9, 2272497), (27, 757499), (47, 435159), (71, 288063), (141, 145053), (213, 96021), (227, 90099), (423, 48351), (639, 32007), (681, 30033), (1269, 16117), (1917, 10669), (2043, 10011), (3337, 6129)]