19656848

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{28571}}^1$

素因数の和:28622

約数の個数: 20

約数和(自身を含む): 38972208

約数和(自身を除く): 19315360

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 28571, 57142, 114284, 228568, 457136, 1228553, 2457106, 4914212, 9828424, 19656848]

約数ペア:

[(1, 19656848), (2, 9828424), (4, 4914212), (8, 2457106), (16, 1228553), (43, 457136), (86, 228568), (172, 114284), (344, 57142), (688, 28571)]