21653986

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{1327}}^1$

素因数の和:1569

約数の個数: 16

約数和(自身を含む): 33465600

約数和(自身を除く): 11811614

約数列:

[1, 2, 41, 82, 199, 398, 1327, 2654, 8159, 16318, 54407, 108814, 264073, 528146, 10826993, 21653986]

約数ペア:

[(1, 21653986), (2, 10826993), (41, 528146), (82, 264073), (199, 108814), (398, 54407), (1327, 16318), (2654, 8159)]