20409746

素因数分解:

$2^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{23899}}^1$

素因数の和:23969

約数の個数: 16

約数和(自身を含む): 35563200

約数和(自身を除く): 15153454

約数列:

[1, 2, 7, 14, 61, 122, 427, 854, 23899, 47798, 167293, 334586, 1457839, 2915678, 10204873, 20409746]

約数ペア:

[(1, 20409746), (2, 10204873), (7, 2915678), (14, 1457839), (61, 334586), (122, 167293), (427, 47798), (854, 23899)]