25529217

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{587}}^1$

素因数の和:725

約数の個数: 32

約数和(自身を含む): 41395200

約数和(自身を除く): 15865983

約数列:

[1, 3, 7, 19, 21, 57, 109, 133, 327, 399, 587, 763, 1761, 2071, 2289, 4109, 6213, 11153, 12327, 14497, 33459, 43491, 63983, 78071, 191949, 234213, 447881, 1215677, 1343643, 3647031, 8509739, 25529217]

約数ペア:

[(1, 25529217), (3, 8509739), (7, 3647031), (19, 1343643), (21, 1215677), (57, 447881), (109, 234213), (133, 191949), (327, 78071), (399, 63983), (587, 43491), (763, 33459), (1761, 14497), (2071, 12327), (2289, 11153), (4109, 6213)]