21838904

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{143677}}^1$

素因数の和:143702

約数の個数: 16

約数和(自身を含む): 43103400

約数和(自身を除く): 21264496

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 143677, 287354, 574708, 1149416, 2729863, 5459726, 10919452, 21838904]

約数ペア:

[(1, 21838904), (2, 10919452), (4, 5459726), (8, 2729863), (19, 1149416), (38, 574708), (76, 287354), (152, 143677)]