21755836

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{293}}^1\times {\mathrm{977}}^1$

素因数の和:1293

約数の個数: 24

約数和(自身を含む): 40254480

約数和(自身を除く): 18498644

約数列:

[1, 2, 4, 19, 38, 76, 293, 586, 977, 1172, 1954, 3908, 5567, 11134, 18563, 22268, 37126, 74252, 286261, 572522, 1145044, 5438959, 10877918, 21755836]

約数ペア:

[(1, 21755836), (2, 10877918), (4, 5438959), (19, 1145044), (38, 572522), (76, 286261), (293, 74252), (586, 37126), (977, 22268), (1172, 18563), (1954, 11134), (3908, 5567)]