28568331

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:216

約数の個数: 48

約数和(自身を含む): 47099520

約数和(自身を除く): 18531189

約数列:

[1, 3, 9, 11, 33, 59, 67, 73, 99, 177, 201, 219, 531, 603, 649, 657, 737, 803, 1947, 2211, 2409, 3953, 4307, 4891, 5841, 6633, 7227, 11859, 12921, 14673, 35577, 38763, 43483, 44019, 47377, 53801, 130449, 142131, 161403, 288569, 391347, 426393, 484209, 865707, 2597121, 3174259, 9522777, 28568331]

約数ペア:

[(1, 28568331), (3, 9522777), (9, 3174259), (11, 2597121), (33, 865707), (59, 484209), (67, 426393), (73, 391347), (99, 288569), (177, 161403), (201, 142131), (219, 130449), (531, 53801), (603, 47377), (649, 44019), (657, 43483), (737, 38763), (803, 35577), (1947, 14673), (2211, 12921), (2409, 11859), (3953, 7227), (4307, 6633), (4891, 5841)]