25547571

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{3049}}^1$

素因数の和:3088

約数の個数: 36

約数和(自身を含む): 45201000

約数和(自身を除く): 19653429

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 399, 441, 931, 1197, 2793, 3049, 8379, 9147, 21343, 27441, 57931, 64029, 149401, 173793, 192087, 405517, 448203, 521379, 1216551, 1344609, 2838619, 3649653, 8515857, 25547571]

約数ペア:

[(1, 25547571), (3, 8515857), (7, 3649653), (9, 2838619), (19, 1344609), (21, 1216551), (49, 521379), (57, 448203), (63, 405517), (133, 192087), (147, 173793), (171, 149401), (399, 64029), (441, 57931), (931, 27441), (1197, 21343), (2793, 9147), (3049, 8379)]