217678321

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{167}}^1\times {\mathrm{6421}}^1$

素因数の和:6624

約数の個数: 16

約数和(自身を含む): 258935040

約数和(自身を除く): 41256719

約数列:

[1, 7, 29, 167, 203, 1169, 4843, 6421, 33901, 44947, 186209, 1072307, 1303463, 7506149, 31096903, 217678321]

約数ペア:

[(1, 217678321), (7, 31096903), (29, 7506149), (167, 1303463), (203, 1072307), (1169, 186209), (4843, 44947), (6421, 33901)]