2102975

素因数分解:

$5^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:275

約数の個数: 24

約数和(自身を含む): 3044448

約数和(自身を除く): 941473

約数列:

[1, 5, 7, 25, 35, 61, 175, 197, 305, 427, 985, 1379, 1525, 2135, 4925, 6895, 10675, 12017, 34475, 60085, 84119, 300425, 420595, 2102975]

約数ペア:

[(1, 2102975), (5, 420595), (7, 300425), (25, 84119), (35, 60085), (61, 34475), (175, 12017), (197, 10675), (305, 6895), (427, 4925), (985, 2135), (1379, 1525)]