21861056

素因数分解:

$2^6\times 7^2\times {\mathrm{6971}}^1$

素因数の和:6997

約数の個数: 42

約数和(自身を含む): 50470308

約数和(自身を除く): 28609252

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 196, 224, 392, 448, 784, 1568, 3136, 6971, 13942, 27884, 48797, 55768, 97594, 111536, 195188, 223072, 341579, 390376, 446144, 683158, 780752, 1366316, 1561504, 2732632, 3123008, 5465264, 10930528, 21861056]

約数ペア:

[(1, 21861056), (2, 10930528), (4, 5465264), (7, 3123008), (8, 2732632), (14, 1561504), (16, 1366316), (28, 780752), (32, 683158), (49, 446144), (56, 390376), (64, 341579), (98, 223072), (112, 195188), (196, 111536), (224, 97594), (392, 55768), (448, 48797), (784, 27884), (1568, 13942), (3136, 6971)]