21395672

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{140761}}^1$

素因数の和:140786

約数の個数: 16

約数和(自身を含む): 42228600

約数和(自身を除く): 20832928

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 140761, 281522, 563044, 1126088, 2674459, 5348918, 10697836, 21395672]

約数ペア:

[(1, 21395672), (2, 10697836), (4, 5348918), (8, 2674459), (19, 1126088), (38, 563044), (76, 281522), (152, 140761)]