19655988

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{3463}}^1$

素因数の和:3524

約数の個数: 48

約数和(自身を含む): 51211776

約数和(自身を除く): 31555788

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 43, 44, 66, 86, 129, 132, 172, 258, 473, 516, 946, 1419, 1892, 2838, 3463, 5676, 6926, 10389, 13852, 20778, 38093, 41556, 76186, 114279, 148909, 152372, 228558, 297818, 446727, 457116, 595636, 893454, 1637999, 1786908, 3275998, 4913997, 6551996, 9827994, 19655988]

約数ペア:

[(1, 19655988), (2, 9827994), (3, 6551996), (4, 4913997), (6, 3275998), (11, 1786908), (12, 1637999), (22, 893454), (33, 595636), (43, 457116), (44, 446727), (66, 297818), (86, 228558), (129, 152372), (132, 148909), (172, 114279), (258, 76186), (473, 41556), (516, 38093), (946, 20778), (1419, 13852), (1892, 10389), (2838, 6926), (3463, 5676)]