19945172

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{7237}}^1$

素因数の和:7307

約数の個数: 24

約数和(自身を含む): 38303496

約数和(自身を除く): 18358324

約数列:

[1, 2, 4, 13, 26, 52, 53, 106, 212, 689, 1378, 2756, 7237, 14474, 28948, 94081, 188162, 376324, 383561, 767122, 1534244, 4986293, 9972586, 19945172]

約数ペア:

[(1, 19945172), (2, 9972586), (4, 4986293), (13, 1534244), (26, 767122), (52, 383561), (53, 376324), (106, 188162), (212, 94081), (689, 28948), (1378, 14474), (2756, 7237)]