217278315

素因数分解:

$3^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{5939}}^1$

素因数の和:6224

約数の個数: 32

約数和(自身を含む): 387763200

約数和(自身を除く): 170484885

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 271, 813, 1355, 2439, 4065, 5939, 7317, 12195, 17817, 29695, 36585, 53451, 89085, 160353, 267255, 801765, 1609469, 4828407, 8047345, 14485221, 24142035, 43455663, 72426105, 217278315]

約数ペア:

[(1, 217278315), (3, 72426105), (5, 43455663), (9, 24142035), (15, 14485221), (27, 8047345), (45, 4828407), (135, 1609469), (271, 801765), (813, 267255), (1355, 160353), (2439, 89085), (4065, 53451), (5939, 36585), (7317, 29695), (12195, 17817)]