393926492757

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{987284443}}^1$

素因数の和:987284472

約数の個数: 16

約数和(自身を含む): 631862044160

約数和(自身を除く): 237935551403

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 987284443, 2961853329, 6910991101, 18758404417, 20732973303, 56275213251, 131308830919, 393926492757]

約数ペア:

[(1, 393926492757), (3, 131308830919), (7, 56275213251), (19, 20732973303), (21, 18758404417), (57, 6910991101), (133, 2961853329), (399, 987284443)]