21767486

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{47}}^2\times {\mathrm{379}}^1$

素因数の和:488

約数の個数: 24

約数和(自身を含む): 36021720

約数和(自身を除く): 14254234

約数列:

[1, 2, 13, 26, 47, 94, 379, 611, 758, 1222, 2209, 4418, 4927, 9854, 17813, 28717, 35626, 57434, 231569, 463138, 837211, 1674422, 10883743, 21767486]

約数ペア:

[(1, 21767486), (2, 10883743), (13, 1674422), (26, 837211), (47, 463138), (94, 231569), (379, 57434), (611, 35626), (758, 28717), (1222, 17813), (2209, 9854), (4418, 4927)]