21432670

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{53}}^2\times {\mathrm{109}}^1$

素因数の和:229

約数の個数: 48

約数和(自身を含む): 45349920

約数和(自身を除く): 23917250

約数列:

[1, 2, 5, 7, 10, 14, 35, 53, 70, 106, 109, 218, 265, 371, 530, 545, 742, 763, 1090, 1526, 1855, 2809, 3710, 3815, 5618, 5777, 7630, 11554, 14045, 19663, 28090, 28885, 39326, 40439, 57770, 80878, 98315, 196630, 202195, 306181, 404390, 612362, 1530905, 2143267, 3061810, 4286534, 10716335, 21432670]

約数ペア:

[(1, 21432670), (2, 10716335), (5, 4286534), (7, 3061810), (10, 2143267), (14, 1530905), (35, 612362), (53, 404390), (70, 306181), (106, 202195), (109, 196630), (218, 98315), (265, 80878), (371, 57770), (530, 40439), (545, 39326), (742, 28885), (763, 28090), (1090, 19663), (1526, 14045), (1855, 11554), (2809, 7630), (3710, 5777), (3815, 5618)]