199894611

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{2207}}^1$

素因数の和:2463

約数の個数: 32

約数和(自身を含む): 322191360

約数和(自身を除く): 122296749

約数列:

[1, 3, 7, 19, 21, 57, 133, 227, 399, 681, 1589, 2207, 4313, 4767, 6621, 12939, 15449, 30191, 41933, 46347, 90573, 125799, 293531, 500989, 880593, 1502967, 3506923, 9518791, 10520769, 28556373, 66631537, 199894611]

約数ペア:

[(1, 199894611), (3, 66631537), (7, 28556373), (19, 10520769), (21, 9518791), (57, 3506923), (133, 1502967), (227, 880593), (399, 500989), (681, 293531), (1589, 125799), (2207, 90573), (4313, 46347), (4767, 41933), (6621, 30191), (12939, 15449)]