19431328

素因数分解:

$2^5\times 7^1\times {\mathrm{223}}^1\times {\mathrm{389}}^1$

素因数の和:629

約数の個数: 48

約数和(自身を含む): 44029440

約数和(自身を除く): 24598112

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 223, 224, 389, 446, 778, 892, 1556, 1561, 1784, 2723, 3112, 3122, 3568, 5446, 6224, 6244, 7136, 10892, 12448, 12488, 21784, 24976, 43568, 49952, 86747, 87136, 173494, 346988, 607229, 693976, 1214458, 1387952, 2428916, 2775904, 4857832, 9715664, 19431328]

約数ペア:

[(1, 19431328), (2, 9715664), (4, 4857832), (7, 2775904), (8, 2428916), (14, 1387952), (16, 1214458), (28, 693976), (32, 607229), (56, 346988), (112, 173494), (223, 87136), (224, 86747), (389, 49952), (446, 43568), (778, 24976), (892, 21784), (1556, 12488), (1561, 12448), (1784, 10892), (2723, 7136), (3112, 6244), (3122, 6224), (3568, 5446)]