21386918

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{3907}}^1$

素因数の和:3956

約数の個数: 32

約数和(自身を含む): 40518144

約数和(自身を除く): 19131226

約数列:

[1, 2, 7, 14, 17, 23, 34, 46, 119, 161, 238, 322, 391, 782, 2737, 3907, 5474, 7814, 27349, 54698, 66419, 89861, 132838, 179722, 464933, 629027, 929866, 1258054, 1527637, 3055274, 10693459, 21386918]

約数ペア:

[(1, 21386918), (2, 10693459), (7, 3055274), (14, 1527637), (17, 1258054), (23, 929866), (34, 629027), (46, 464933), (119, 179722), (161, 132838), (238, 89861), (322, 66419), (391, 54698), (782, 27349), (2737, 7814), (3907, 5474)]