20997103672

素因数分解:

$2^3\times {\mathrm{641}}^1\times {\mathrm{4094599}}^1$

素因数の和:4095246

約数の個数: 16

約数和(自身を含む): 39430998000

約数和(自身を除く): 18433894328

約数列:

[1, 2, 4, 8, 641, 1282, 2564, 5128, 4094599, 8189198, 16378396, 32756792, 2624637959, 5249275918, 10498551836, 20997103672]

約数ペア:

[(1, 20997103672), (2, 10498551836), (4, 5249275918), (8, 2624637959), (641, 32756792), (1282, 16378396), (2564, 8189198), (5128, 4094599)]