20439172

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{8363}}^1$

素因数の和:8427

約数の個数: 24

約数和(自身を含む): 39344256

約数和(自身を除く): 18905084

約数列:

[1, 2, 4, 13, 26, 47, 52, 94, 188, 611, 1222, 2444, 8363, 16726, 33452, 108719, 217438, 393061, 434876, 786122, 1572244, 5109793, 10219586, 20439172]

約数ペア:

[(1, 20439172), (2, 10219586), (4, 5109793), (13, 1572244), (26, 786122), (47, 434876), (52, 393061), (94, 217438), (188, 108719), (611, 33452), (1222, 16726), (2444, 8363)]