321555

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1$

素因数の和:135

約数の個数: 32

約数和(自身を含む): 592704

約数和(自身を除く): 271149

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 97, 195, 221, 255, 291, 485, 663, 1105, 1261, 1455, 1649, 3315, 3783, 4947, 6305, 8245, 18915, 21437, 24735, 64311, 107185, 321555]

約数ペア:

[(1, 321555), (3, 107185), (5, 64311), (13, 24735), (15, 21437), (17, 18915), (39, 8245), (51, 6305), (65, 4947), (85, 3783), (97, 3315), (195, 1649), (221, 1455), (255, 1261), (291, 1105), (485, 663)]