31721898

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{509}}^1$

素因数の和:591

約数の個数: 64

約数和(自身を含む): 74027520

約数和(自身を除く): 42305622

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 47, 51, 78, 94, 102, 141, 221, 282, 442, 509, 611, 663, 799, 1018, 1222, 1326, 1527, 1598, 1833, 2397, 3054, 3666, 4794, 6617, 8653, 10387, 13234, 17306, 19851, 20774, 23923, 25959, 31161, 39702, 47846, 51918, 62322, 71769, 112489, 143538, 224978, 310999, 337467, 406691, 621998, 674934, 813382, 932997, 1220073, 1865994, 2440146, 5286983, 10573966, 15860949, 31721898]

約数ペア:

[(1, 31721898), (2, 15860949), (3, 10573966), (6, 5286983), (13, 2440146), (17, 1865994), (26, 1220073), (34, 932997), (39, 813382), (47, 674934), (51, 621998), (78, 406691), (94, 337467), (102, 310999), (141, 224978), (221, 143538), (282, 112489), (442, 71769), (509, 62322), (611, 51918), (663, 47846), (799, 39702), (1018, 31161), (1222, 25959), (1326, 23923), (1527, 20774), (1598, 19851), (1833, 17306), (2397, 13234), (3054, 10387), (3666, 8653), (4794, 6617)]