20780186

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{78121}}^1$

素因数の和:78149

約数の個数: 16

約数和(自身を含む): 37498560

約数和(自身を除く): 16718374

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 78121, 156242, 546847, 1093694, 1484299, 2968598, 10390093, 20780186]

約数ペア:

[(1, 20780186), (2, 10390093), (7, 2968598), (14, 1484299), (19, 1093694), (38, 546847), (133, 156242), (266, 78121)]