21796220

素因数分解:

$2^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{4759}}^1$

素因数の和:4997

約数の個数: 24

約数和(自身を含む): 45981600

約数和(自身を除く): 24185380

約数列:

[1, 2, 4, 5, 10, 20, 229, 458, 916, 1145, 2290, 4580, 4759, 9518, 19036, 23795, 47590, 95180, 1089811, 2179622, 4359244, 5449055, 10898110, 21796220]

約数ペア:

[(1, 21796220), (2, 10898110), (4, 5449055), (5, 4359244), (10, 2179622), (20, 1089811), (229, 95180), (458, 47590), (916, 23795), (1145, 19036), (2290, 9518), (4580, 4759)]