21300968

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6607}}^1$

素因数の和:6657

約数の個数: 32

約数和(自身を含む): 44405760

約数和(自身を除く): 23104792

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 6607, 13214, 26428, 52856, 85891, 171782, 204817, 343564, 409634, 687128, 819268, 1638536, 2662621, 5325242, 10650484, 21300968]

約数ペア:

[(1, 21300968), (2, 10650484), (4, 5325242), (8, 2662621), (13, 1638536), (26, 819268), (31, 687128), (52, 409634), (62, 343564), (104, 204817), (124, 171782), (248, 85891), (403, 52856), (806, 26428), (1612, 13214), (3224, 6607)]