21996850

素因数分解:

$2^1\times 5^2\times {\mathrm{163}}^1\times {\mathrm{2699}}^1$

素因数の和:2874

約数の個数: 24

約数和(自身を含む): 41180400

約数和(自身を除く): 19183550

約数列:

[1, 2, 5, 10, 25, 50, 163, 326, 815, 1630, 2699, 4075, 5398, 8150, 13495, 26990, 67475, 134950, 439937, 879874, 2199685, 4399370, 10998425, 21996850]

約数ペア:

[(1, 21996850), (2, 10998425), (5, 4399370), (10, 2199685), (25, 879874), (50, 439937), (163, 134950), (326, 67475), (815, 26990), (1630, 13495), (2699, 8150), (4075, 5398)]