21576196

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 42045696

約数和(自身を除く): 20469500

約数列:

[1, 2, 4, 17, 34, 43, 47, 68, 86, 94, 157, 172, 188, 314, 628, 731, 799, 1462, 1598, 2021, 2669, 2924, 3196, 4042, 5338, 6751, 7379, 8084, 10676, 13502, 14758, 27004, 29516, 34357, 68714, 114767, 125443, 137428, 229534, 250886, 317297, 459068, 501772, 634594, 1269188, 5394049, 10788098, 21576196]

約数ペア:

[(1, 21576196), (2, 10788098), (4, 5394049), (17, 1269188), (34, 634594), (43, 501772), (47, 459068), (68, 317297), (86, 250886), (94, 229534), (157, 137428), (172, 125443), (188, 114767), (314, 68714), (628, 34357), (731, 29516), (799, 27004), (1462, 14758), (1598, 13502), (2021, 10676), (2669, 8084), (2924, 7379), (3196, 6751), (4042, 5338)]