21125055

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{10589}}^1$

素因数の和:10623

約数の個数: 32

約数和(自身を含む): 40665600

約数和(自身を除く): 19540545

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 95, 105, 133, 285, 399, 665, 1995, 10589, 31767, 52945, 74123, 158835, 201191, 222369, 370615, 603573, 1005955, 1111845, 1408337, 3017865, 4225011, 7041685, 21125055]

約数ペア:

[(1, 21125055), (3, 7041685), (5, 4225011), (7, 3017865), (15, 1408337), (19, 1111845), (21, 1005955), (35, 603573), (57, 370615), (95, 222369), (105, 201191), (133, 158835), (285, 74123), (399, 52945), (665, 31767), (1995, 10589)]