21011199

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{3557}}^1$

素因数の和:3750

約数の個数: 16

約数和(自身を含む): 30741120

約数和(自身を除く): 9729921

約数列:

[1, 3, 11, 33, 179, 537, 1969, 3557, 5907, 10671, 39127, 117381, 636703, 1910109, 7003733, 21011199]

約数ペア:

[(1, 21011199), (3, 7003733), (11, 1910109), (33, 636703), (179, 117381), (537, 39127), (1969, 10671), (3557, 5907)]