20809178

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{15101}}^1$

素因数の和:15169

約数の個数: 16

約数和(自身を含む): 34251336

約数和(自身を除く): 13442158

約数列:

[1, 2, 13, 26, 53, 106, 689, 1378, 15101, 30202, 196313, 392626, 800353, 1600706, 10404589, 20809178]

約数ペア:

[(1, 20809178), (2, 10404589), (13, 1600706), (26, 800353), (53, 392626), (106, 196313), (689, 30202), (1378, 15101)]