19249516

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{461}}^1$

素因数の和:562

約数の個数: 48

約数和(自身を含む): 40205088

約数和(自身を除く): 20955572

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 73, 143, 146, 286, 292, 461, 572, 803, 922, 949, 1606, 1844, 1898, 3212, 3796, 5071, 5993, 10142, 10439, 11986, 20284, 20878, 23972, 33653, 41756, 65923, 67306, 131846, 134612, 263692, 370183, 437489, 740366, 874978, 1480732, 1749956, 4812379, 9624758, 19249516]

約数ペア:

[(1, 19249516), (2, 9624758), (4, 4812379), (11, 1749956), (13, 1480732), (22, 874978), (26, 740366), (44, 437489), (52, 370183), (73, 263692), (143, 134612), (146, 131846), (286, 67306), (292, 65923), (461, 41756), (572, 33653), (803, 23972), (922, 20878), (949, 20284), (1606, 11986), (1844, 10439), (1898, 10142), (3212, 5993), (3796, 5071)]