20327355

素因数分解:

$3^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{947}}^1$

素因数の和:1017

約数の個数: 40

約数和(自身を含む): 37165392

約数和(自身を除く): 16838037

約数列:

[1, 3, 5, 9, 15, 27, 45, 53, 81, 135, 159, 265, 405, 477, 795, 947, 1431, 2385, 2841, 4293, 4735, 7155, 8523, 14205, 21465, 25569, 42615, 50191, 76707, 127845, 150573, 250955, 383535, 451719, 752865, 1355157, 2258595, 4065471, 6775785, 20327355]

約数ペア:

[(1, 20327355), (3, 6775785), (5, 4065471), (9, 2258595), (15, 1355157), (27, 752865), (45, 451719), (53, 383535), (81, 250955), (135, 150573), (159, 127845), (265, 76707), (405, 50191), (477, 42615), (795, 25569), (947, 21465), (1431, 14205), (2385, 8523), (2841, 7155), (4293, 4735)]