19988864

素因数分解:

$2^7\times 7^2\times {\mathrm{3187}}^1$

素因数の和:3215

約数の個数: 48

約数和(自身を含む): 46337580

約数和(自身を除く): 26348716

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 392, 448, 784, 896, 1568, 3136, 3187, 6272, 6374, 12748, 22309, 25496, 44618, 50992, 89236, 101984, 156163, 178472, 203968, 312326, 356944, 407936, 624652, 713888, 1249304, 1427776, 2498608, 2855552, 4997216, 9994432, 19988864]

約数ペア:

[(1, 19988864), (2, 9994432), (4, 4997216), (7, 2855552), (8, 2498608), (14, 1427776), (16, 1249304), (28, 713888), (32, 624652), (49, 407936), (56, 356944), (64, 312326), (98, 203968), (112, 178472), (128, 156163), (196, 101984), (224, 89236), (392, 50992), (448, 44618), (784, 25496), (896, 22309), (1568, 12748), (3136, 6374), (3187, 6272)]