20768390

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{122167}}^1$

素因数の和:122191

約数の個数: 16

約数和(自身を含む): 39582432

約数和(自身を除く): 18814042

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 122167, 244334, 610835, 1221670, 2076839, 4153678, 10384195, 20768390]

約数ペア:

[(1, 20768390), (2, 10384195), (5, 4153678), (10, 2076839), (17, 1221670), (34, 610835), (85, 244334), (170, 122167)]