21061616

素因数分解:

$2^4\times {\mathrm{503}}^1\times {\mathrm{2617}}^1$

素因数の和:3128

約数の個数: 20

約数和(自身を含む): 40903632

約数和(自身を除く): 19842016

約数列:

[1, 2, 4, 8, 16, 503, 1006, 2012, 2617, 4024, 5234, 8048, 10468, 20936, 41872, 1316351, 2632702, 5265404, 10530808, 21061616]

約数ペア:

[(1, 21061616), (2, 10530808), (4, 5265404), (8, 2632702), (16, 1316351), (503, 41872), (1006, 20936), (2012, 10468), (2617, 8048), (4024, 5234)]