25005729

素因数分解:

$3^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{1279}}^1$

素因数の和:1322

約数の個数: 32

約数和(自身を含む): 40960000

約数和(自身を除く): 15954271

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 343, 399, 931, 1029, 1279, 2793, 3837, 6517, 8953, 19551, 24301, 26859, 62671, 72903, 170107, 188013, 438697, 510321, 1190749, 1316091, 3572247, 8335243, 25005729]

約数ペア:

[(1, 25005729), (3, 8335243), (7, 3572247), (19, 1316091), (21, 1190749), (49, 510321), (57, 438697), (133, 188013), (147, 170107), (343, 72903), (399, 62671), (931, 26859), (1029, 24301), (1279, 19551), (2793, 8953), (3837, 6517)]