21954513

素因数分解:

$3^1\times 7^1\times {\mathrm{653}}^1\times {\mathrm{1601}}^1$

素因数の和:2264

約数の個数: 16

約数和(自身を含む): 33526656

約数和(自身を除く): 11572143

約数列:

[1, 3, 7, 21, 653, 1601, 1959, 4571, 4803, 11207, 13713, 33621, 1045453, 3136359, 7318171, 21954513]

約数ペア:

[(1, 21954513), (3, 7318171), (7, 3136359), (21, 1045453), (653, 33621), (1601, 13713), (1959, 11207), (4571, 4803)]