16620725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3181}}^1$

素因数の和:3221

約数の個数: 24

約数和(自身を含む): 23674080

約数和(自身を除く): 7053355

約数列:

[1, 5, 11, 19, 25, 55, 95, 209, 275, 475, 1045, 3181, 5225, 15905, 34991, 60439, 79525, 174955, 302195, 664829, 874775, 1510975, 3324145, 16620725]

約数ペア:

[(1, 16620725), (5, 3324145), (11, 1510975), (19, 874775), (25, 664829), (55, 302195), (95, 174955), (209, 79525), (275, 60439), (475, 34991), (1045, 15905), (3181, 5225)]