21742028

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{967}}^1$

素因数の和:1062

約数の個数: 48

約数和(自身を含む): 48136704

約数和(自身を除く): 26394676

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 73, 77, 146, 154, 292, 308, 511, 803, 967, 1022, 1606, 1934, 2044, 3212, 3868, 5621, 6769, 10637, 11242, 13538, 21274, 22484, 27076, 42548, 70591, 74459, 141182, 148918, 282364, 297836, 494137, 776501, 988274, 1553002, 1976548, 3106004, 5435507, 10871014, 21742028]

約数ペア:

[(1, 21742028), (2, 10871014), (4, 5435507), (7, 3106004), (11, 1976548), (14, 1553002), (22, 988274), (28, 776501), (44, 494137), (73, 297836), (77, 282364), (146, 148918), (154, 141182), (292, 74459), (308, 70591), (511, 42548), (803, 27076), (967, 22484), (1022, 21274), (1606, 13538), (1934, 11242), (2044, 10637), (3212, 6769), (3868, 5621)]