18880767

素因数分解:

$3^2\times {\mathrm{31}}^2\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:164

約数の個数: 36

約数和(自身を含む): 29432520

約数和(自身を除く): 10551753

約数列:

[1, 3, 9, 31, 37, 59, 93, 111, 177, 279, 333, 531, 961, 1147, 1829, 2183, 2883, 3441, 5487, 6549, 8649, 10323, 16461, 19647, 35557, 56699, 67673, 106671, 170097, 203019, 320013, 510291, 609057, 2097863, 6293589, 18880767]

約数ペア:

[(1, 18880767), (3, 6293589), (9, 2097863), (31, 609057), (37, 510291), (59, 320013), (93, 203019), (111, 170097), (177, 106671), (279, 67673), (333, 56699), (531, 35557), (961, 19647), (1147, 16461), (1829, 10323), (2183, 8649), (2883, 6549), (3441, 5487)]