1721000715

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{45403}}^1$

素因数の和:45456

約数の個数: 48

約数和(自身を含む): 3321393408

約数和(自身を除く): 1600392693

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 361, 399, 665, 1083, 1805, 1995, 2527, 5415, 7581, 12635, 37905, 45403, 136209, 227015, 317821, 681045, 862657, 953463, 1589105, 2587971, 4313285, 4767315, 6038599, 12939855, 16390483, 18115797, 30192995, 49171449, 81952415, 90578985, 114733381, 245857245, 344200143, 573666905, 1721000715]

約数ペア:

[(1, 1721000715), (3, 573666905), (5, 344200143), (7, 245857245), (15, 114733381), (19, 90578985), (21, 81952415), (35, 49171449), (57, 30192995), (95, 18115797), (105, 16390483), (133, 12939855), (285, 6038599), (361, 4767315), (399, 4313285), (665, 2587971), (1083, 1589105), (1805, 953463), (1995, 862657), (2527, 681045), (5415, 317821), (7581, 227015), (12635, 136209), (37905, 45403)]