21180863048

素因数分解:

$2^3\times {\mathrm{349}}^1\times {\mathrm{1223}}^1\times {\mathrm{6203}}^1$

素因数の和:7781

約数の個数: 32

約数和(自身を含む): 39866904000

約数和(自身を除く): 18686040952

約数列:

[1, 2, 4, 8, 349, 698, 1223, 1396, 2446, 2792, 4892, 6203, 9784, 12406, 24812, 49624, 426827, 853654, 1707308, 2164847, 3414616, 4329694, 7586269, 8659388, 15172538, 17318776, 30345076, 60690152, 2647607881, 5295215762, 10590431524, 21180863048]

約数ペア:

[(1, 21180863048), (2, 10590431524), (4, 5295215762), (8, 2647607881), (349, 60690152), (698, 30345076), (1223, 17318776), (1396, 15172538), (2446, 8659388), (2792, 7586269), (4892, 4329694), (6203, 3414616), (9784, 2164847), (12406, 1707308), (24812, 853654), (49624, 426827)]