28778274

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4007}}^1$

素因数の和:4044

約数の個数: 64

約数和(自身を含む): 76953600

約数和(自身を除く): 48175326

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 27, 38, 42, 54, 57, 63, 114, 126, 133, 171, 189, 266, 342, 378, 399, 513, 798, 1026, 1197, 2394, 3591, 4007, 7182, 8014, 12021, 24042, 28049, 36063, 56098, 72126, 76133, 84147, 108189, 152266, 168294, 216378, 228399, 252441, 456798, 504882, 532931, 685197, 757323, 1065862, 1370394, 1514646, 1598793, 2055591, 3197586, 4111182, 4796379, 9592758, 14389137, 28778274]

約数ペア:

[(1, 28778274), (2, 14389137), (3, 9592758), (6, 4796379), (7, 4111182), (9, 3197586), (14, 2055591), (18, 1598793), (19, 1514646), (21, 1370394), (27, 1065862), (38, 757323), (42, 685197), (54, 532931), (57, 504882), (63, 456798), (114, 252441), (126, 228399), (133, 216378), (171, 168294), (189, 152266), (266, 108189), (342, 84147), (378, 76133), (399, 72126), (513, 56098), (798, 36063), (1026, 28049), (1197, 24042), (2394, 12021), (3591, 8014), (4007, 7182)]