18961305

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{337}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 34524672

約数和(自身を除く): 15563367

約数列:

[1, 3, 5, 11, 15, 31, 33, 55, 93, 121, 155, 165, 337, 341, 363, 465, 605, 1011, 1023, 1685, 1705, 1815, 3707, 3751, 5055, 5115, 10447, 11121, 11253, 18535, 18755, 31341, 40777, 52235, 55605, 56265, 114917, 122331, 156705, 203885, 344751, 574585, 611655, 1264087, 1723755, 3792261, 6320435, 18961305]

約数ペア:

[(1, 18961305), (3, 6320435), (5, 3792261), (11, 1723755), (15, 1264087), (31, 611655), (33, 574585), (55, 344751), (93, 203885), (121, 156705), (155, 122331), (165, 114917), (337, 56265), (341, 55605), (363, 52235), (465, 40777), (605, 31341), (1011, 18755), (1023, 18535), (1685, 11253), (1705, 11121), (1815, 10447), (3707, 5115), (3751, 5055)]