21473823

素因数分解:

$3^1\times 7^1\times {\mathrm{241}}^1\times {\mathrm{4243}}^1$

素因数の和:4494

約数の個数: 16

約数和(自身を含む): 32865536

約数和(自身を除く): 11391713

約数列:

[1, 3, 7, 21, 241, 723, 1687, 4243, 5061, 12729, 29701, 89103, 1022563, 3067689, 7157941, 21473823]

約数ペア:

[(1, 21473823), (3, 7157941), (7, 3067689), (21, 1022563), (241, 89103), (723, 29701), (1687, 12729), (4243, 5061)]