21306424

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{1621}}^1$

素因数の和:1711

約数の個数: 32

約数和(自身を含む): 42042240

約数和(自身を除く): 20735816

約数列:

[1, 2, 4, 8, 31, 53, 62, 106, 124, 212, 248, 424, 1621, 1643, 3242, 3286, 6484, 6572, 12968, 13144, 50251, 85913, 100502, 171826, 201004, 343652, 402008, 687304, 2663303, 5326606, 10653212, 21306424]

約数ペア:

[(1, 21306424), (2, 10653212), (4, 5326606), (8, 2663303), (31, 687304), (53, 402008), (62, 343652), (106, 201004), (124, 171826), (212, 100502), (248, 85913), (424, 50251), (1621, 13144), (1643, 12968), (3242, 6572), (3286, 6484)]