19949667

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1\times {\mathrm{937}}^1$

素因数の和:1138

約数の個数: 16

約数和(自身を含む): 27374592

約数和(自身を除く): 7424925

約数列:

[1, 3, 47, 141, 151, 453, 937, 2811, 7097, 21291, 44039, 132117, 141487, 424461, 6649889, 19949667]

約数ペア:

[(1, 19949667), (3, 6649889), (47, 424461), (141, 141487), (151, 132117), (453, 44039), (937, 21291), (2811, 7097)]