20330247

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{251}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 34473600

約数和(自身を除く): 14143353

約数列:

[1, 3, 7, 19, 21, 29, 49, 57, 87, 133, 147, 203, 251, 399, 551, 609, 753, 931, 1421, 1653, 1757, 2793, 3857, 4263, 4769, 5271, 7279, 11571, 12299, 14307, 21837, 26999, 33383, 36897, 50953, 80997, 100149, 138301, 152859, 233681, 356671, 414903, 701043, 968107, 1070013, 2904321, 6776749, 20330247]

約数ペア:

[(1, 20330247), (3, 6776749), (7, 2904321), (19, 1070013), (21, 968107), (29, 701043), (49, 414903), (57, 356671), (87, 233681), (133, 152859), (147, 138301), (203, 100149), (251, 80997), (399, 50953), (551, 36897), (609, 33383), (753, 26999), (931, 21837), (1421, 14307), (1653, 12299), (1757, 11571), (2793, 7279), (3857, 5271), (4263, 4769)]