21000912560

素因数分解:

$2^4\times 5^1\times {\mathrm{262511407}}^1$

素因数の和:262511420

約数の個数: 20

約数和(自身を含む): 48827121888

約数和(自身を除く): 27826209328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 262511407, 525022814, 1050045628, 1312557035, 2100091256, 2625114070, 4200182512, 5250228140, 10500456280, 21000912560]

約数ペア:

[(1, 21000912560), (2, 10500456280), (4, 5250228140), (5, 4200182512), (8, 2625114070), (10, 2100091256), (16, 1312557035), (20, 1050045628), (40, 525022814), (80, 262511407)]