210905149

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{547}}^1$

素因数の和:809

約数の個数: 32

約数和(自身を含む): 274964480

約数和(自身を除く): 64059331

約数列:

[1, 7, 13, 19, 91, 133, 223, 247, 547, 1561, 1729, 2899, 3829, 4237, 7111, 10393, 20293, 29659, 49777, 55081, 72751, 121981, 135109, 385567, 853867, 945763, 1585753, 2317639, 11100271, 16223473, 30129307, 210905149]

約数ペア:

[(1, 210905149), (7, 30129307), (13, 16223473), (19, 11100271), (91, 2317639), (133, 1585753), (223, 945763), (247, 853867), (547, 385567), (1561, 135109), (1729, 121981), (2899, 72751), (3829, 55081), (4237, 49777), (7111, 29659), (10393, 20293)]