21225812

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{367}}^1\times {\mathrm{761}}^1$

素因数の和:1151

約数の個数: 24

約数和(自身を含む): 39258240

約数和(自身を除く): 18032428

約数列:

[1, 2, 4, 19, 38, 76, 367, 734, 761, 1468, 1522, 3044, 6973, 13946, 14459, 27892, 28918, 57836, 279287, 558574, 1117148, 5306453, 10612906, 21225812]

約数ペア:

[(1, 21225812), (2, 10612906), (4, 5306453), (19, 1117148), (38, 558574), (76, 279287), (367, 57836), (734, 28918), (761, 27892), (1468, 14459), (1522, 13946), (3044, 6973)]