21905078

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{49559}}^1$

素因数の和:49591

約数の個数: 16

約数和(自身を含む): 37467360

約数和(自身を除く): 15562282

約数列:

[1, 2, 13, 17, 26, 34, 221, 442, 49559, 99118, 644267, 842503, 1288534, 1685006, 10952539, 21905078]

約数ペア:

[(1, 21905078), (2, 10952539), (13, 1685006), (17, 1288534), (26, 842503), (34, 644267), (221, 99118), (442, 49559)]