21798741

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{2917}}^1$

素因数の和:3020

約数の個数: 16

約数和(自身を含む): 30253824

約数和(自身を除く): 8455083

約数列:

[1, 3, 47, 53, 141, 159, 2491, 2917, 7473, 8751, 137099, 154601, 411297, 463803, 7266247, 21798741]

約数ペア:

[(1, 21798741), (3, 7266247), (47, 463803), (53, 411297), (141, 154601), (159, 137099), (2491, 8751), (2917, 7473)]