18812404

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{1637}}^1$

素因数の和:1684

約数の個数: 36

約数和(自身を含む): 37769004

約数和(自身を除く): 18956600

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 169, 221, 338, 442, 676, 884, 1637, 2873, 3274, 5746, 6548, 11492, 21281, 27829, 42562, 55658, 85124, 111316, 276653, 361777, 553306, 723554, 1106612, 1447108, 4703101, 9406202, 18812404]

約数ペア:

[(1, 18812404), (2, 9406202), (4, 4703101), (13, 1447108), (17, 1106612), (26, 723554), (34, 553306), (52, 361777), (68, 276653), (169, 111316), (221, 85124), (338, 55658), (442, 42562), (676, 27829), (884, 21281), (1637, 11492), (2873, 6548), (3274, 5746)]