21508712439

素因数分解:

$3^1\times {\mathrm{53}}^2\times {\mathrm{2552357}}^1$

素因数の和:2552466

約数の個数: 12

約数和(自身を含む): 29229603816

約数和(自身を除く): 7720891377

約数列:

[1, 3, 53, 159, 2809, 8427, 2552357, 7657071, 135274921, 405824763, 7169570813, 21508712439]

約数ペア:

[(1, 21508712439), (3, 7169570813), (53, 405824763), (159, 135274921), (2809, 7657071), (8427, 2552357)]