21249752

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{139801}}^1$

素因数の和:139826

約数の個数: 16

約数和(自身を含む): 41940600

約数和(自身を除く): 20690848

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 139801, 279602, 559204, 1118408, 2656219, 5312438, 10624876, 21249752]

約数ペア:

[(1, 21249752), (2, 10624876), (4, 5312438), (8, 2656219), (19, 1118408), (38, 559204), (76, 279602), (152, 139801)]