21210776

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{64667}}^1$

素因数の和:64714

約数の個数: 16

約数和(自身を含む): 40740840

約数和(自身を除く): 19530064

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 64667, 129334, 258668, 517336, 2651347, 5302694, 10605388, 21210776]

約数ペア:

[(1, 21210776), (2, 10605388), (4, 5302694), (8, 2651347), (41, 517336), (82, 258668), (164, 129334), (328, 64667)]