21238868

素因数分解:

$2^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{6959}}^1$

素因数の和:7079

約数の個数: 24

約数和(自身を含む): 42873600

約数和(自身を除く): 21634732

約数列:

[1, 2, 4, 7, 14, 28, 109, 218, 436, 763, 1526, 3052, 6959, 13918, 27836, 48713, 97426, 194852, 758531, 1517062, 3034124, 5309717, 10619434, 21238868]

約数ペア:

[(1, 21238868), (2, 10619434), (4, 5309717), (7, 3034124), (14, 1517062), (28, 758531), (109, 194852), (218, 97426), (436, 48713), (763, 27836), (1526, 13918), (3052, 6959)]