20805627

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:243

約数の個数: 32

約数和(自身を含む): 30481920

約数和(自身を除く): 9676293

約数列:

[1, 3, 19, 53, 57, 71, 97, 159, 213, 291, 1007, 1349, 1843, 3021, 3763, 4047, 5141, 5529, 6887, 11289, 15423, 20661, 71497, 97679, 130853, 214491, 293037, 365011, 392559, 1095033, 6935209, 20805627]

約数ペア:

[(1, 20805627), (3, 6935209), (19, 1095033), (53, 392559), (57, 365011), (71, 293037), (97, 214491), (159, 130853), (213, 97679), (291, 71497), (1007, 20661), (1349, 15423), (1843, 11289), (3021, 6887), (3763, 5529), (4047, 5141)]