25181289

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{193}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 44387200

約数和(自身を除く): 19205911

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 109, 133, 171, 193, 327, 399, 579, 763, 981, 1197, 1351, 1737, 2071, 2289, 3667, 4053, 6213, 6867, 11001, 12159, 14497, 18639, 21037, 25669, 33003, 43491, 63111, 77007, 130473, 147259, 189333, 231021, 399703, 441777, 1199109, 1325331, 2797921, 3597327, 8393763, 25181289]

約数ペア:

[(1, 25181289), (3, 8393763), (7, 3597327), (9, 2797921), (19, 1325331), (21, 1199109), (57, 441777), (63, 399703), (109, 231021), (133, 189333), (171, 147259), (193, 130473), (327, 77007), (399, 63111), (579, 43491), (763, 33003), (981, 25669), (1197, 21037), (1351, 18639), (1737, 14497), (2071, 12159), (2289, 11001), (3667, 6867), (4053, 6213)]