21284588

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{7723}}^1$

素因数の和:7793

約数の個数: 24

約数和(自身を含む): 40875408

約数和(自身を除く): 19590820

約数列:

[1, 2, 4, 13, 26, 52, 53, 106, 212, 689, 1378, 2756, 7723, 15446, 30892, 100399, 200798, 401596, 409319, 818638, 1637276, 5321147, 10642294, 21284588]

約数ペア:

[(1, 21284588), (2, 10642294), (4, 5321147), (13, 1637276), (26, 818638), (52, 409319), (53, 401596), (106, 200798), (212, 100399), (689, 30892), (1378, 15446), (2756, 7723)]