19939634

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:243

約数の個数: 48

約数和(自身を含む): 36681984

約数和(自身を除く): 16742350

約数列:

[1, 2, 11, 13, 22, 26, 31, 62, 143, 169, 173, 286, 338, 341, 346, 403, 682, 806, 1859, 1903, 2249, 3718, 3806, 4433, 4498, 5239, 5363, 8866, 10478, 10726, 24739, 29237, 49478, 57629, 58474, 58993, 69719, 115258, 117986, 139438, 321607, 643214, 766909, 906347, 1533818, 1812694, 9969817, 19939634]

約数ペア:

[(1, 19939634), (2, 9969817), (11, 1812694), (13, 1533818), (22, 906347), (26, 766909), (31, 643214), (62, 321607), (143, 139438), (169, 117986), (173, 115258), (286, 69719), (338, 58993), (341, 58474), (346, 57629), (403, 49478), (682, 29237), (806, 24739), (1859, 10726), (1903, 10478), (2249, 8866), (3718, 5363), (3806, 5239), (4433, 4498)]