21811384

素因数分解:

$2^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{8287}}^1$

素因数の和:8347

約数の個数: 32

約数和(自身を含む): 47738880

約数和(自身を除く): 25927496

約数列:

[1, 2, 4, 7, 8, 14, 28, 47, 56, 94, 188, 329, 376, 658, 1316, 2632, 8287, 16574, 33148, 58009, 66296, 116018, 232036, 389489, 464072, 778978, 1557956, 2726423, 3115912, 5452846, 10905692, 21811384]

約数ペア:

[(1, 21811384), (2, 10905692), (4, 5452846), (7, 3115912), (8, 2726423), (14, 1557956), (28, 778978), (47, 464072), (56, 389489), (94, 232036), (188, 116018), (329, 66296), (376, 58009), (658, 33148), (1316, 16574), (2632, 8287)]