20986535

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1907}}^1$

素因数の和:2014

約数の個数: 16

約数和(自身を含む): 26376192

約数和(自身を除く): 5389657

約数列:

[1, 5, 31, 71, 155, 355, 1907, 2201, 9535, 11005, 59117, 135397, 295585, 676985, 4197307, 20986535]

約数ペア:

[(1, 20986535), (5, 4197307), (31, 676985), (71, 295585), (155, 135397), (355, 59117), (1907, 11005), (2201, 9535)]