21704252

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{1487}}^1$

素因数の和:1621

約数の個数: 24

約数和(自身を含む): 39372480

約数和(自身を除く): 17668228

約数列:

[1, 2, 4, 41, 82, 89, 164, 178, 356, 1487, 2974, 3649, 5948, 7298, 14596, 60967, 121934, 132343, 243868, 264686, 529372, 5426063, 10852126, 21704252]

約数ペア:

[(1, 21704252), (2, 10852126), (4, 5426063), (41, 529372), (82, 264686), (89, 243868), (164, 132343), (178, 121934), (356, 60967), (1487, 14596), (2974, 7298), (3649, 5948)]