21175192

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{199}}^1\times {\mathrm{283}}^1$

素因数の和:535

約数の個数: 32

約数和(自身を含む): 40896000

約数和(自身を除く): 19720808

約数列:

[1, 2, 4, 8, 47, 94, 188, 199, 283, 376, 398, 566, 796, 1132, 1592, 2264, 9353, 13301, 18706, 26602, 37412, 53204, 56317, 74824, 106408, 112634, 225268, 450536, 2646899, 5293798, 10587596, 21175192]

約数ペア:

[(1, 21175192), (2, 10587596), (4, 5293798), (8, 2646899), (47, 450536), (94, 225268), (188, 112634), (199, 106408), (283, 74824), (376, 56317), (398, 53204), (566, 37412), (796, 26602), (1132, 18706), (1592, 13301), (2264, 9353)]