21907929

素因数分解:

$3^1\times {\mathrm{107}}^1\times {\mathrm{139}}^1\times {\mathrm{491}}^1$

素因数の和:740

約数の個数: 16

約数和(自身を含む): 29756160

約数和(自身を除く): 7848231

約数列:

[1, 3, 107, 139, 321, 417, 491, 1473, 14873, 44619, 52537, 68249, 157611, 204747, 7302643, 21907929]

約数ペア:

[(1, 21907929), (3, 7302643), (107, 204747), (139, 157611), (321, 68249), (417, 52537), (491, 44619), (1473, 14873)]