21265628

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{317}}^1\times {\mathrm{541}}^1$

素因数の和:893

約数の個数: 24

約数和(自身を含む): 38607744

約数和(自身を除く): 17342116

約数列:

[1, 2, 4, 31, 62, 124, 317, 541, 634, 1082, 1268, 2164, 9827, 16771, 19654, 33542, 39308, 67084, 171497, 342994, 685988, 5316407, 10632814, 21265628]

約数ペア:

[(1, 21265628), (2, 10632814), (4, 5316407), (31, 685988), (62, 342994), (124, 171497), (317, 67084), (541, 39308), (634, 33542), (1082, 19654), (1268, 16771), (2164, 9827)]