20731670876

素因数分解:

$2^2\times 7^2\times {\mathrm{197}}^1\times {\mathrm{536923}}^1$

素因数の和:537138

約数の個数: 36

約数和(自身を含む): 42418069848

約数和(自身を除く): 21686398972

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 197, 394, 788, 1379, 2758, 5516, 9653, 19306, 38612, 536923, 1073846, 2147692, 3758461, 7516922, 15033844, 26309227, 52618454, 105236908, 105773831, 211547662, 423095324, 740416817, 1480833634, 2961667268, 5182917719, 10365835438, 20731670876]

約数ペア:

[(1, 20731670876), (2, 10365835438), (4, 5182917719), (7, 2961667268), (14, 1480833634), (28, 740416817), (49, 423095324), (98, 211547662), (196, 105773831), (197, 105236908), (394, 52618454), (788, 26309227), (1379, 15033844), (2758, 7516922), (5516, 3758461), (9653, 2147692), (19306, 1073846), (38612, 536923)]