21000712

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{154417}}^1$

素因数の和:154440

約数の個数: 16

約数和(自身を含む): 41692860

約数和(自身を除く): 20692148

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 154417, 308834, 617668, 1235336, 2625089, 5250178, 10500356, 21000712]

約数ペア:

[(1, 21000712), (2, 10500356), (4, 5250178), (8, 2625089), (17, 1235336), (34, 617668), (68, 308834), (136, 154417)]