19811584

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{5953}}^1$

素因数の和:5982

約数の個数: 36

約数和(自身を含む): 42594916

約数和(自身を除く): 22783332

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 832, 1664, 3328, 5953, 11906, 23812, 47624, 77389, 95248, 154778, 190496, 309556, 380992, 619112, 761984, 1238224, 1523968, 2476448, 4952896, 9905792, 19811584]

約数ペア:

[(1, 19811584), (2, 9905792), (4, 4952896), (8, 2476448), (13, 1523968), (16, 1238224), (26, 761984), (32, 619112), (52, 380992), (64, 309556), (104, 190496), (128, 154778), (208, 95248), (256, 77389), (416, 47624), (832, 23812), (1664, 11906), (3328, 5953)]