21771526

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{5381}}^1$

素因数の和:5424

約数の個数: 24

約数和(自身を含む): 39654576

約数和(自身を除く): 17883050

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 289, 578, 2023, 4046, 5381, 10762, 37667, 75334, 91477, 182954, 640339, 1280678, 1555109, 3110218, 10885763, 21771526]

約数ペア:

[(1, 21771526), (2, 10885763), (7, 3110218), (14, 1555109), (17, 1280678), (34, 640339), (119, 182954), (238, 91477), (289, 75334), (578, 37667), (2023, 10762), (4046, 5381)]