21147932

素因数分解:

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

素因数の和:590

約数の個数: 48

約数和(自身を含む): 43182720

約数和(自身を除く): 22034788

約数列:

[1, 2, 4, 13, 17, 26, 34, 47, 52, 68, 94, 188, 221, 442, 509, 611, 799, 884, 1018, 1222, 1598, 2036, 2444, 3196, 6617, 8653, 10387, 13234, 17306, 20774, 23923, 26468, 34612, 41548, 47846, 95692, 112489, 224978, 310999, 406691, 449956, 621998, 813382, 1243996, 1626764, 5286983, 10573966, 21147932]

約数ペア:

[(1, 21147932), (2, 10573966), (4, 5286983), (13, 1626764), (17, 1243996), (26, 813382), (34, 621998), (47, 449956), (52, 406691), (68, 310999), (94, 224978), (188, 112489), (221, 95692), (442, 47846), (509, 41548), (611, 34612), (799, 26468), (884, 23923), (1018, 20774), (1222, 17306), (1598, 13234), (2036, 10387), (2444, 8653), (3196, 6617)]