21291618

素因数分解:

$2^1\times 3^1\times {\mathrm{73}}^1\times {\mathrm{48611}}^1$

素因数の和:48689

約数の個数: 16

約数和(自身を含む): 43167456

約数和(自身を除く): 21875838

約数列:

[1, 2, 3, 6, 73, 146, 219, 438, 48611, 97222, 145833, 291666, 3548603, 7097206, 10645809, 21291618]

約数ペア:

[(1, 21291618), (2, 10645809), (3, 7097206), (6, 3548603), (73, 291666), (146, 145833), (219, 97222), (438, 48611)]