2021123776

素因数分解:

$2^6\times 7^2\times {\mathrm{644491}}^1$

素因数の和:644517

約数の個数: 42

約数和(自身を含む): 4665477588

約数和(自身を除く): 2644353812

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 196, 224, 392, 448, 784, 1568, 3136, 644491, 1288982, 2577964, 4511437, 5155928, 9022874, 10311856, 18045748, 20623712, 31580059, 36091496, 41247424, 63160118, 72182992, 126320236, 144365984, 252640472, 288731968, 505280944, 1010561888, 2021123776]

約数ペア:

[(1, 2021123776), (2, 1010561888), (4, 505280944), (7, 288731968), (8, 252640472), (14, 144365984), (16, 126320236), (28, 72182992), (32, 63160118), (49, 41247424), (56, 36091496), (64, 31580059), (98, 20623712), (112, 18045748), (196, 10311856), (224, 9022874), (392, 5155928), (448, 4511437), (784, 2577964), (1568, 1288982), (3136, 644491)]