19400409

素因数分解:

$3^2\times 7^1\times {\mathrm{293}}^1\times {\mathrm{1051}}^1$

素因数の和:1357

約数の個数: 24

約数和(自身を含む): 32165952

約数和(自身を除く): 12765543

約数列:

[1, 3, 7, 9, 21, 63, 293, 879, 1051, 2051, 2637, 3153, 6153, 7357, 9459, 18459, 22071, 66213, 307943, 923829, 2155601, 2771487, 6466803, 19400409]

約数ペア:

[(1, 19400409), (3, 6466803), (7, 2771487), (9, 2155601), (21, 923829), (63, 307943), (293, 66213), (879, 22071), (1051, 18459), (2051, 9459), (2637, 7357), (3153, 6153)]