20921972062

素因数分解:

$2^1\times {\mathrm{199}}^1\times {\mathrm{641}}^1\times {\mathrm{82009}}^1$

素因数の和:82851

約数の個数: 16

約数和(自身を含む): 31590252000

約数和(自身を除く): 10668279938

約数列:

[1, 2, 199, 398, 641, 1282, 82009, 127559, 164018, 255118, 16319791, 32639582, 52567769, 105135538, 10460986031, 20921972062]

約数ペア:

[(1, 20921972062), (2, 10460986031), (199, 105135538), (398, 52567769), (641, 32639582), (1282, 16319791), (82009, 255118), (127559, 164018)]