19688452

素因数分解:

$2^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{6451}}^1$

素因数の和:6571

約数の個数: 24

約数和(自身を含む): 39744320

約数和(自身を除く): 20055868

約数列:

[1, 2, 4, 7, 14, 28, 109, 218, 436, 763, 1526, 3052, 6451, 12902, 25804, 45157, 90314, 180628, 703159, 1406318, 2812636, 4922113, 9844226, 19688452]

約数ペア:

[(1, 19688452), (2, 9844226), (4, 4922113), (7, 2812636), (14, 1406318), (28, 703159), (109, 180628), (218, 90314), (436, 45157), (763, 25804), (1526, 12902), (3052, 6451)]