21917284

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{2957}}^1$

素因数の和:3087

約数の個数: 24

約数和(自身を含む): 40997880

約数和(自身を除く): 19080596

約数列:

[1, 2, 4, 17, 34, 68, 109, 218, 436, 1853, 2957, 3706, 5914, 7412, 11828, 50269, 100538, 201076, 322313, 644626, 1289252, 5479321, 10958642, 21917284]

約数ペア:

[(1, 21917284), (2, 10958642), (4, 5479321), (17, 1289252), (34, 644626), (68, 322313), (109, 201076), (218, 100538), (436, 50269), (1853, 11828), (2957, 7412), (3706, 5914)]