21107150

素因数分解:

$2^1\times 5^2\times {\mathrm{139}}^1\times {\mathrm{3037}}^1$

素因数の和:3188

約数の個数: 24

約数和(自身を含む): 39554760

約数和(自身を除く): 18447610

約数列:

[1, 2, 5, 10, 25, 50, 139, 278, 695, 1390, 3037, 3475, 6074, 6950, 15185, 30370, 75925, 151850, 422143, 844286, 2110715, 4221430, 10553575, 21107150]

約数ペア:

[(1, 21107150), (2, 10553575), (5, 4221430), (10, 2110715), (25, 844286), (50, 422143), (139, 151850), (278, 75925), (695, 30370), (1390, 15185), (3037, 6950), (3475, 6074)]