20787948

素因数分解:

$2^2\times 3^3\times {\mathrm{71}}^1\times {\mathrm{2711}}^1$

素因数の和:2795

約数の個数: 48

約数和(自身を含む): 54673920

約数和(自身を除く): 33885972

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 71, 108, 142, 213, 284, 426, 639, 852, 1278, 1917, 2556, 2711, 3834, 5422, 7668, 8133, 10844, 16266, 24399, 32532, 48798, 73197, 97596, 146394, 192481, 292788, 384962, 577443, 769924, 1154886, 1732329, 2309772, 3464658, 5196987, 6929316, 10393974, 20787948]

約数ペア:

[(1, 20787948), (2, 10393974), (3, 6929316), (4, 5196987), (6, 3464658), (9, 2309772), (12, 1732329), (18, 1154886), (27, 769924), (36, 577443), (54, 384962), (71, 292788), (108, 192481), (142, 146394), (213, 97596), (284, 73197), (426, 48798), (639, 32532), (852, 24399), (1278, 16266), (1917, 10844), (2556, 8133), (2711, 7668), (3834, 5422)]