25422761

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:225

約数の個数: 32

約数和(自身を含む): 32820480

約数和(自身を除く): 7397719

約数列:

[1, 7, 13, 43, 73, 89, 91, 301, 511, 559, 623, 949, 1157, 3139, 3827, 3913, 6497, 6643, 8099, 21973, 26789, 40807, 45479, 49751, 84461, 279371, 285649, 348257, 591227, 1955597, 3631823, 25422761]

約数ペア:

[(1, 25422761), (7, 3631823), (13, 1955597), (43, 591227), (73, 348257), (89, 285649), (91, 279371), (301, 84461), (511, 49751), (559, 45479), (623, 40807), (949, 26789), (1157, 21973), (3139, 8099), (3827, 6643), (3913, 6497)]