21449365

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{373}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 31021056

約数和(自身を除く): 9571691

約数列:

[1, 5, 7, 31, 35, 53, 155, 217, 265, 371, 373, 1085, 1643, 1855, 1865, 2611, 8215, 11501, 11563, 13055, 19769, 57505, 57815, 80941, 98845, 138383, 404705, 612839, 691915, 3064195, 4289873, 21449365]

約数ペア:

[(1, 21449365), (5, 4289873), (7, 3064195), (31, 691915), (35, 612839), (53, 404705), (155, 138383), (217, 98845), (265, 80941), (371, 57815), (373, 57505), (1085, 19769), (1643, 13055), (1855, 11563), (1865, 11501), (2611, 8215)]