25197963

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{17909}}^1$

素因数の和:17986

約数の個数: 16

約数和(自身を含む): 38972160

約数和(自身を除く): 13774197

約数列:

[1, 3, 7, 21, 67, 201, 469, 1407, 17909, 53727, 125363, 376089, 1199903, 3599709, 8399321, 25197963]

約数ペア:

[(1, 25197963), (3, 8399321), (7, 3599709), (21, 1199903), (67, 376089), (201, 125363), (469, 53727), (1407, 17909)]