28688418

素因数分解:

$2^1\times 3^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{947}}^1$

素因数の和:989

約数の個数: 80

約数和(自身を含む): 74330784

約数和(自身を除く): 45642366

約数列:

[1, 2, 3, 6, 9, 11, 17, 18, 22, 27, 33, 34, 51, 54, 66, 81, 99, 102, 153, 162, 187, 198, 297, 306, 374, 459, 561, 594, 891, 918, 947, 1122, 1377, 1683, 1782, 1894, 2754, 2841, 3366, 5049, 5682, 8523, 10098, 10417, 15147, 16099, 17046, 20834, 25569, 30294, 31251, 32198, 48297, 51138, 62502, 76707, 93753, 96594, 144891, 153414, 177089, 187506, 281259, 289782, 354178, 434673, 531267, 562518, 843777, 869346, 1062534, 1304019, 1593801, 1687554, 2608038, 3187602, 4781403, 9562806, 14344209, 28688418]

約数ペア:

[(1, 28688418), (2, 14344209), (3, 9562806), (6, 4781403), (9, 3187602), (11, 2608038), (17, 1687554), (18, 1593801), (22, 1304019), (27, 1062534), (33, 869346), (34, 843777), (51, 562518), (54, 531267), (66, 434673), (81, 354178), (99, 289782), (102, 281259), (153, 187506), (162, 177089), (187, 153414), (198, 144891), (297, 96594), (306, 93753), (374, 76707), (459, 62502), (561, 51138), (594, 48297), (891, 32198), (918, 31251), (947, 30294), (1122, 25569), (1377, 20834), (1683, 17046), (1782, 16099), (1894, 15147), (2754, 10417), (2841, 10098), (3366, 8523), (5049, 5682)]