20217786

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{2647}}^1$

素因数の和:2738

約数の個数: 32

約数和(自身を含む): 43215360

約数和(自身を除く): 22997574

約数列:

[1, 2, 3, 6, 19, 38, 57, 67, 114, 134, 201, 402, 1273, 2546, 2647, 3819, 5294, 7638, 7941, 15882, 50293, 100586, 150879, 177349, 301758, 354698, 532047, 1064094, 3369631, 6739262, 10108893, 20217786]

約数ペア:

[(1, 20217786), (2, 10108893), (3, 6739262), (6, 3369631), (19, 1064094), (38, 532047), (57, 354698), (67, 301758), (114, 177349), (134, 150879), (201, 100586), (402, 50293), (1273, 15882), (2546, 7941), (2647, 7638), (3819, 5294)]