2691255

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{71}}^1$

素因数の和:124

約数の個数: 48

約数和(自身を含む): 5266944

約数和(自身を除く): 2575689

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 71, 95, 105, 133, 213, 285, 355, 361, 399, 497, 665, 1065, 1083, 1349, 1491, 1805, 1995, 2485, 2527, 4047, 5415, 6745, 7455, 7581, 9443, 12635, 20235, 25631, 28329, 37905, 47215, 76893, 128155, 141645, 179417, 384465, 538251, 897085, 2691255]

約数ペア:

[(1, 2691255), (3, 897085), (5, 538251), (7, 384465), (15, 179417), (19, 141645), (21, 128155), (35, 76893), (57, 47215), (71, 37905), (95, 28329), (105, 25631), (133, 20235), (213, 12635), (285, 9443), (355, 7581), (361, 7455), (399, 6745), (497, 5415), (665, 4047), (1065, 2527), (1083, 2485), (1349, 1995), (1491, 1805)]