20500688

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{98561}}^1$

素因数の和:98582

約数の個数: 20

約数和(自身を含む): 42775908

約数和(自身を除く): 22275220

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 98561, 197122, 394244, 788488, 1281293, 1576976, 2562586, 5125172, 10250344, 20500688]

約数ペア:

[(1, 20500688), (2, 10250344), (4, 5125172), (8, 2562586), (13, 1576976), (16, 1281293), (26, 788488), (52, 394244), (104, 197122), (208, 98561)]