19715163

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{709}}^1$

素因数の和:779

約数の個数: 32

約数和(自身を含む): 30535680

約数和(自身を除く): 10820517

約数列:

[1, 3, 13, 23, 31, 39, 69, 93, 299, 403, 709, 713, 897, 1209, 2127, 2139, 9217, 9269, 16307, 21979, 27651, 27807, 48921, 65937, 211991, 285727, 505517, 635973, 857181, 1516551, 6571721, 19715163]

約数ペア:

[(1, 19715163), (3, 6571721), (13, 1516551), (23, 857181), (31, 635973), (39, 505517), (69, 285727), (93, 211991), (299, 65937), (403, 48921), (709, 27807), (713, 27651), (897, 21979), (1209, 16307), (2127, 9269), (2139, 9217)]