21431788

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{24691}}^1$

素因数の和:24733

約数の個数: 24

約数和(自身を含む): 44248064

約数和(自身を除く): 22816276

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 24691, 49382, 98764, 172837, 345674, 691348, 765421, 1530842, 3061684, 5357947, 10715894, 21431788]

約数ペア:

[(1, 21431788), (2, 10715894), (4, 5357947), (7, 3061684), (14, 1530842), (28, 765421), (31, 691348), (62, 345674), (124, 172837), (217, 98764), (434, 49382), (868, 24691)]