19856901

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{619}}^1$

素因数の和:693

約数の個数: 24

約数和(自身を含む): 28931680

約数和(自身を除く): 9074779

約数列:

[1, 3, 17, 37, 51, 111, 289, 619, 629, 867, 1857, 1887, 10523, 10693, 22903, 31569, 32079, 68709, 178891, 389351, 536673, 1168053, 6618967, 19856901]

約数ペア:

[(1, 19856901), (3, 6618967), (17, 1168053), (37, 536673), (51, 389351), (111, 178891), (289, 68709), (619, 32079), (629, 31569), (867, 22903), (1857, 10693), (1887, 10523)]