21408643184

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{317}}^1\times {\mathrm{248291}}^1$

素因数の和:248633

約数の個数: 40

約数和(自身を含む): 44057925648

約数和(自身を除く): 22649282464

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 317, 634, 1268, 2536, 5072, 5389, 10778, 21556, 43112, 86224, 248291, 496582, 993164, 1986328, 3972656, 4220947, 8441894, 16883788, 33767576, 67535152, 78708247, 157416494, 314832988, 629665976, 1259331952, 1338040199, 2676080398, 5352160796, 10704321592, 21408643184]

約数ペア:

[(1, 21408643184), (2, 10704321592), (4, 5352160796), (8, 2676080398), (16, 1338040199), (17, 1259331952), (34, 629665976), (68, 314832988), (136, 157416494), (272, 78708247), (317, 67535152), (634, 33767576), (1268, 16883788), (2536, 8441894), (5072, 4220947), (5389, 3972656), (10778, 1986328), (21556, 993164), (43112, 496582), (86224, 248291)]