21399994

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1759}}^1$

素因数の和:1858

約数の個数: 32

約数和(自身を含む): 40550400

約数和(自身を除く): 19150406

約数列:

[1, 2, 7, 11, 14, 22, 77, 79, 154, 158, 553, 869, 1106, 1738, 1759, 3518, 6083, 12166, 12313, 19349, 24626, 38698, 135443, 138961, 270886, 277922, 972727, 1528571, 1945454, 3057142, 10699997, 21399994]

約数ペア:

[(1, 21399994), (2, 10699997), (7, 3057142), (11, 1945454), (14, 1528571), (22, 972727), (77, 277922), (79, 270886), (154, 138961), (158, 135443), (553, 38698), (869, 24626), (1106, 19349), (1738, 12313), (1759, 12166), (3518, 6083)]