21752912

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{12473}}^1$

素因数の和:12590

約数の個数: 20

約数和(自身を含む): 42536340

約数和(自身を除く): 20783428

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 12473, 24946, 49892, 99784, 199568, 1359557, 2719114, 5438228, 10876456, 21752912]

約数ペア:

[(1, 21752912), (2, 10876456), (4, 5438228), (8, 2719114), (16, 1359557), (109, 199568), (218, 99784), (436, 49892), (872, 24946), (1744, 12473)]