20449856

素因数分解:

$2^6\times 7^2\times {\mathrm{6521}}^1$

素因数の和:6547

約数の個数: 42

約数和(自身を含む): 47212758

約数和(自身を除く): 26762902

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 196, 224, 392, 448, 784, 1568, 3136, 6521, 13042, 26084, 45647, 52168, 91294, 104336, 182588, 208672, 319529, 365176, 417344, 639058, 730352, 1278116, 1460704, 2556232, 2921408, 5112464, 10224928, 20449856]

約数ペア:

[(1, 20449856), (2, 10224928), (4, 5112464), (7, 2921408), (8, 2556232), (14, 1460704), (16, 1278116), (28, 730352), (32, 639058), (49, 417344), (56, 365176), (64, 319529), (98, 208672), (112, 182588), (196, 104336), (224, 91294), (392, 52168), (448, 45647), (784, 26084), (1568, 13042), (3136, 6521)]