21981190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{28547}}^1$

素因数の和:28572

約数の個数: 32

約数和(自身を含む): 49330944

約数和(自身を除く): 27349754

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 28547, 57094, 142735, 199829, 285470, 314017, 399658, 628034, 999145, 1570085, 1998290, 2198119, 3140170, 4396238, 10990595, 21981190]

約数ペア:

[(1, 21981190), (2, 10990595), (5, 4396238), (7, 3140170), (10, 2198119), (11, 1998290), (14, 1570085), (22, 999145), (35, 628034), (55, 399658), (70, 314017), (77, 285470), (110, 199829), (154, 142735), (385, 57094), (770, 28547)]