20948865

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1523}}^1$

素因数の和:1669

約数の個数: 32

約数和(自身を含む): 38624256

約数和(自身を除く): 17675391

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 131, 393, 655, 917, 1523, 1965, 2751, 4569, 4585, 7615, 10661, 13755, 22845, 31983, 53305, 159915, 199513, 598539, 997565, 1396591, 2992695, 4189773, 6982955, 20948865]

約数ペア:

[(1, 20948865), (3, 6982955), (5, 4189773), (7, 2992695), (15, 1396591), (21, 997565), (35, 598539), (105, 199513), (131, 159915), (393, 53305), (655, 31983), (917, 22845), (1523, 13755), (1965, 10661), (2751, 7615), (4569, 4585)]