20931770

素因数分解:

$2^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{25219}}^1$

素因数の和:25309

約数の個数: 16

約数和(自身を含む): 38132640

約数和(自身を除く): 17200870

約数列:

[1, 2, 5, 10, 83, 166, 415, 830, 25219, 50438, 126095, 252190, 2093177, 4186354, 10465885, 20931770]

約数ペア:

[(1, 20931770), (2, 10465885), (5, 4186354), (10, 2093177), (83, 252190), (166, 126095), (415, 50438), (830, 25219)]