21181310

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73039}}^1$

素因数の和:73075

約数の個数: 16

約数和(自身を含む): 39441600

約数和(自身を除く): 18260290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 73039, 146078, 365195, 730390, 2118131, 4236262, 10590655, 21181310]

約数ペア:

[(1, 21181310), (2, 10590655), (5, 4236262), (10, 2118131), (29, 730390), (58, 365195), (145, 146078), (290, 73039)]