19948852

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{271}}^1$

素因数の和:532

約数の個数: 48

約数和(自身を含む): 43868160

約数和(自身を除く): 23919308

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 239, 271, 308, 478, 542, 956, 1084, 1673, 1897, 2629, 2981, 3346, 3794, 5258, 5962, 6692, 7588, 10516, 11924, 18403, 20867, 36806, 41734, 64769, 73612, 83468, 129538, 259076, 453383, 712459, 906766, 1424918, 1813532, 2849836, 4987213, 9974426, 19948852]

約数ペア:

[(1, 19948852), (2, 9974426), (4, 4987213), (7, 2849836), (11, 1813532), (14, 1424918), (22, 906766), (28, 712459), (44, 453383), (77, 259076), (154, 129538), (239, 83468), (271, 73612), (308, 64769), (478, 41734), (542, 36806), (956, 20867), (1084, 18403), (1673, 11924), (1897, 10516), (2629, 7588), (2981, 6692), (3346, 5962), (3794, 5258)]