21087368

素因数分解:

$2^3\times {\mathrm{1171}}^1\times {\mathrm{2251}}^1$

素因数の和:3428

約数の個数: 16

約数和(自身を含む): 39590160

約数和(自身を除く): 18502792

約数列:

[1, 2, 4, 8, 1171, 2251, 2342, 4502, 4684, 9004, 9368, 18008, 2635921, 5271842, 10543684, 21087368]

約数ペア:

[(1, 21087368), (2, 10543684), (4, 5271842), (8, 2635921), (1171, 18008), (2251, 9368), (2342, 9004), (4502, 4684)]