18916149

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{349}}^1$

素因数の和:477

約数の個数: 32

約数和(自身を含む): 30240000

約数和(自身を除く): 11323851

約数列:

[1, 3, 7, 21, 29, 87, 89, 203, 267, 349, 609, 623, 1047, 1869, 2443, 2581, 7329, 7743, 10121, 18067, 30363, 31061, 54201, 70847, 93183, 212541, 217427, 652281, 900769, 2702307, 6305383, 18916149]

約数ペア:

[(1, 18916149), (3, 6305383), (7, 2702307), (21, 900769), (29, 652281), (87, 217427), (89, 212541), (203, 93183), (267, 70847), (349, 54201), (609, 31061), (623, 30363), (1047, 18067), (1869, 10121), (2443, 7743), (2581, 7329)]