163563981

素因数分解:

$3^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{23531}}^1$

素因数の和:23872

約数の個数: 16

約数和(自身を含む): 250003968

約数和(自身を除く): 86439987

約数列:

[1, 3, 7, 21, 331, 993, 2317, 6951, 23531, 70593, 164717, 494151, 7788761, 23366283, 54521327, 163563981]

約数ペア:

[(1, 163563981), (3, 54521327), (7, 23366283), (21, 7788761), (331, 494151), (993, 164717), (2317, 70593), (6951, 23531)]