20539855

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{461}}^1$

素因数の和:559

約数の個数: 32

約数和(自身を含む): 30159360

約数和(自身を除く): 9619505

約数列:

[1, 5, 7, 19, 35, 67, 95, 133, 335, 461, 469, 665, 1273, 2305, 2345, 3227, 6365, 8759, 8911, 16135, 30887, 43795, 44555, 61313, 154435, 216209, 306565, 586853, 1081045, 2934265, 4107971, 20539855]

約数ペア:

[(1, 20539855), (5, 4107971), (7, 2934265), (19, 1081045), (35, 586853), (67, 306565), (95, 216209), (133, 154435), (335, 61313), (461, 44555), (469, 43795), (665, 30887), (1273, 16135), (2305, 8911), (2345, 8759), (3227, 6365)]