21187112

素因数分解:

$2^3\times {\mathrm{151}}^1\times {\mathrm{17539}}^1$

素因数の和:17696

約数の個数: 16

約数和(自身を含む): 39991200

約数和(自身を除く): 18804088

約数列:

[1, 2, 4, 8, 151, 302, 604, 1208, 17539, 35078, 70156, 140312, 2648389, 5296778, 10593556, 21187112]

約数ペア:

[(1, 21187112), (2, 10593556), (4, 5296778), (8, 2648389), (151, 140312), (302, 70156), (604, 35078), (1208, 17539)]