19997565

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{839}}^1$

素因数の和:1081

約数の個数: 32

約数和(自身を含む): 36771840

約数和(自身を除く): 16774275

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 227, 681, 839, 1135, 1589, 2517, 3405, 4195, 4767, 5873, 7945, 12585, 17619, 23835, 29365, 88095, 190453, 571359, 952265, 1333171, 2856795, 3999513, 6665855, 19997565]

約数ペア:

[(1, 19997565), (3, 6665855), (5, 3999513), (7, 2856795), (15, 1333171), (21, 952265), (35, 571359), (105, 190453), (227, 88095), (681, 29365), (839, 23835), (1135, 17619), (1589, 12585), (2517, 7945), (3405, 5873), (4195, 4767)]