25221987

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{1109}}^1$

素因数の和:1160

約数の個数: 36

約数和(自身を含む): 43982640

約数和(自身を除く): 18760653

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 361, 399, 1083, 1109, 1197, 2527, 3249, 3327, 7581, 7763, 9981, 21071, 22743, 23289, 63213, 69867, 147497, 189639, 400349, 442491, 1201047, 1327473, 2802443, 3603141, 8407329, 25221987]

約数ペア:

[(1, 25221987), (3, 8407329), (7, 3603141), (9, 2802443), (19, 1327473), (21, 1201047), (57, 442491), (63, 400349), (133, 189639), (171, 147497), (361, 69867), (399, 63213), (1083, 23289), (1109, 22743), (1197, 21071), (2527, 9981), (3249, 7763), (3327, 7581)]