19871904

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{15923}}^1$

素因数の和:15949

約数の個数: 48

約数和(自身を含む): 56179872

約数和(自身を除く): 36307968

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 78, 96, 104, 156, 208, 312, 416, 624, 1248, 15923, 31846, 47769, 63692, 95538, 127384, 191076, 206999, 254768, 382152, 413998, 509536, 620997, 764304, 827996, 1241994, 1528608, 1655992, 2483988, 3311984, 4967976, 6623968, 9935952, 19871904]

約数ペア:

[(1, 19871904), (2, 9935952), (3, 6623968), (4, 4967976), (6, 3311984), (8, 2483988), (12, 1655992), (13, 1528608), (16, 1241994), (24, 827996), (26, 764304), (32, 620997), (39, 509536), (48, 413998), (52, 382152), (78, 254768), (96, 206999), (104, 191076), (156, 127384), (208, 95538), (312, 63692), (416, 47769), (624, 31846), (1248, 15923)]