20953188

素因数分解:

$2^2\times 3^3\times {\mathrm{131}}^1\times {\mathrm{1481}}^1$

素因数の和:1625

約数の個数: 48

約数和(自身を含む): 54774720

約数和(自身を除く): 33821532

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 131, 262, 393, 524, 786, 1179, 1481, 1572, 2358, 2962, 3537, 4443, 4716, 5924, 7074, 8886, 13329, 14148, 17772, 26658, 39987, 53316, 79974, 159948, 194011, 388022, 582033, 776044, 1164066, 1746099, 2328132, 3492198, 5238297, 6984396, 10476594, 20953188]

約数ペア:

[(1, 20953188), (2, 10476594), (3, 6984396), (4, 5238297), (6, 3492198), (9, 2328132), (12, 1746099), (18, 1164066), (27, 776044), (36, 582033), (54, 388022), (108, 194011), (131, 159948), (262, 79974), (393, 53316), (524, 39987), (786, 26658), (1179, 17772), (1481, 14148), (1572, 13329), (2358, 8886), (2962, 7074), (3537, 5924), (4443, 4716)]