25145379

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{3001}}^1$

素因数の和:3040

約数の個数: 36

約数和(自身を含む): 44489640

約数和(自身を除く): 19344261

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 399, 441, 931, 1197, 2793, 3001, 8379, 9003, 21007, 27009, 57019, 63021, 147049, 171057, 189063, 399133, 441147, 513171, 1197399, 1323441, 2793931, 3592197, 8381793, 25145379]

約数ペア:

[(1, 25145379), (3, 8381793), (7, 3592197), (9, 2793931), (19, 1323441), (21, 1197399), (49, 513171), (57, 441147), (63, 399133), (133, 189063), (147, 171057), (171, 147049), (399, 63021), (441, 57019), (931, 27009), (1197, 21007), (2793, 9003), (3001, 8379)]