12847947

素因数分解:

$3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{1231}}^1$

素因数の和:1319

約数の個数: 24

約数和(自身を含む): 20224512

約数和(自身を除く): 7376565

約数列:

[1, 3, 7, 21, 49, 71, 147, 213, 497, 1231, 1491, 3479, 3693, 8617, 10437, 25851, 60319, 87401, 180957, 262203, 611807, 1835421, 4282649, 12847947]

約数ペア:

[(1, 12847947), (3, 4282649), (7, 1835421), (21, 611807), (49, 262203), (71, 180957), (147, 87401), (213, 60319), (497, 25851), (1231, 10437), (1491, 8617), (3479, 3693)]