20947515

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{34061}}^1$

素因数の和:34110

約数の個数: 16

約数和(自身を含む): 34334496

約数和(自身を除く): 13386981

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 34061, 102183, 170305, 510915, 1396501, 4189503, 6982505, 20947515]

約数ペア:

[(1, 20947515), (3, 6982505), (5, 4189503), (15, 1396501), (41, 510915), (123, 170305), (205, 102183), (615, 34061)]