20620581

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1$

素因数の和:301

約数の個数: 32

約数和(自身を含む): 30336768

約数和(自身を除く): 9716187

約数列:

[1, 3, 23, 37, 41, 69, 111, 123, 197, 591, 851, 943, 1517, 2553, 2829, 4531, 4551, 7289, 8077, 13593, 21867, 24231, 34891, 104673, 167647, 185771, 298849, 502941, 557313, 896547, 6873527, 20620581]

約数ペア:

[(1, 20620581), (3, 6873527), (23, 896547), (37, 557313), (41, 502941), (69, 298849), (111, 185771), (123, 167647), (197, 104673), (591, 34891), (851, 24231), (943, 21867), (1517, 13593), (2553, 8077), (2829, 7289), (4531, 4551)]