25780979

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1\times {\mathrm{349}}^1$

素因数の和:590

約数の個数: 16

約数和(自身を含む): 30206400

約数和(自身を除く): 4425421

約数列:

[1, 7, 61, 173, 349, 427, 1211, 2443, 10553, 21289, 60377, 73871, 149023, 422639, 3682997, 25780979]

約数ペア:

[(1, 25780979), (7, 3682997), (61, 422639), (173, 149023), (349, 73871), (427, 60377), (1211, 21289), (2443, 10553)]