21454888

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^2\times {\mathrm{2267}}^1$

素因数の和:2306

約数の個数: 48

約数和(自身を含む): 49805280

約数和(自身を除く): 28350392

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 169, 182, 338, 364, 676, 728, 1183, 1352, 2267, 2366, 4534, 4732, 9068, 9464, 15869, 18136, 29471, 31738, 58942, 63476, 117884, 126952, 206297, 235768, 383123, 412594, 766246, 825188, 1532492, 1650376, 2681861, 3064984, 5363722, 10727444, 21454888]

約数ペア:

[(1, 21454888), (2, 10727444), (4, 5363722), (7, 3064984), (8, 2681861), (13, 1650376), (14, 1532492), (26, 825188), (28, 766246), (52, 412594), (56, 383123), (91, 235768), (104, 206297), (169, 126952), (182, 117884), (338, 63476), (364, 58942), (676, 31738), (728, 29471), (1183, 18136), (1352, 15869), (2267, 9464), (2366, 9068), (4534, 4732)]