25138197

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{21001}}^1$

素因数の和:21033

約数の個数: 24

約数和(自身を含む): 43684160

約数和(自身を除く): 18545963

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 21001, 63003, 147007, 189009, 399019, 441021, 1197057, 1323063, 2793133, 3591171, 8379399, 25138197]

約数ペア:

[(1, 25138197), (3, 8379399), (7, 3591171), (9, 2793133), (19, 1323063), (21, 1197057), (57, 441021), (63, 399019), (133, 189009), (171, 147007), (399, 63003), (1197, 21001)]