21004330

素因数分解:

$2^1\times 5^1\times {\mathrm{673}}^1\times {\mathrm{3121}}^1$

素因数の和:3801

約数の個数: 16

約数和(自身を含む): 37876104

約数和(自身を除く): 16871774

約数列:

[1, 2, 5, 10, 673, 1346, 3121, 3365, 6242, 6730, 15605, 31210, 2100433, 4200866, 10502165, 21004330]

約数ペア:

[(1, 21004330), (2, 10502165), (5, 4200866), (10, 2100433), (673, 31210), (1346, 15605), (3121, 6730), (3365, 6242)]