20189844

素因数分解:

$2^2\times 3^3\times {\mathrm{71}}^1\times {\mathrm{2633}}^1$

素因数の和:2717

約数の個数: 48

約数和(自身を含む): 53101440

約数和(自身を除く): 32911596

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, 2633, 3834, 5266, 7668, 7899, 10532, 15798, 23697, 31596, 47394, 71091, 94788, 142182, 186943, 284364, 373886, 560829, 747772, 1121658, 1682487, 2243316, 3364974, 5047461, 6729948, 10094922, 20189844]

約数ペア:

[(1, 20189844), (2, 10094922), (3, 6729948), (4, 5047461), (6, 3364974), (9, 2243316), (12, 1682487), (18, 1121658), (27, 747772), (36, 560829), (54, 373886), (71, 284364), (108, 186943), (142, 142182), (213, 94788), (284, 71091), (426, 47394), (639, 31596), (852, 23697), (1278, 15798), (1917, 10532), (2556, 7899), (2633, 7668), (3834, 5266)]