21322792

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{677}}^1$

素因数の和:841

約数の個数: 32

約数和(自身を含む): 41656320

約数和(自身を除く): 20333528

約数列:

[1, 2, 4, 8, 31, 62, 124, 127, 248, 254, 508, 677, 1016, 1354, 2708, 3937, 5416, 7874, 15748, 20987, 31496, 41974, 83948, 85979, 167896, 171958, 343916, 687832, 2665349, 5330698, 10661396, 21322792]

約数ペア:

[(1, 21322792), (2, 10661396), (4, 5330698), (8, 2665349), (31, 687832), (62, 343916), (124, 171958), (127, 167896), (248, 85979), (254, 83948), (508, 41974), (677, 31496), (1016, 20987), (1354, 15748), (2708, 7874), (3937, 5416)]