21720007678

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{43499}}^1\times {\mathrm{8609}}^1$

素因数の和:52139

約数の個数: 16

約数和(自身を含む): 33708150000

約数和(自身を除く): 11988142322

約数列:

[1, 2, 29, 58, 8609, 17218, 43499, 86998, 249661, 499322, 1261471, 2522942, 374482891, 748965782, 10860003839, 21720007678]

約数ペア:

[(1, 21720007678), (2, 10860003839), (29, 748965782), (58, 374482891), (8609, 2522942), (17218, 1261471), (43499, 499322), (86998, 249661)]