20163479

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:239

約数の個数: 32

約数和(自身を含む): 26127360

約数和(自身を除く): 5963881

約数列:

[1, 7, 17, 23, 53, 119, 139, 161, 371, 391, 901, 973, 1219, 2363, 2737, 3197, 6307, 7367, 8533, 16541, 20723, 22379, 51569, 54349, 125239, 145061, 169441, 380443, 876673, 1186087, 2880497, 20163479]

約数ペア:

[(1, 20163479), (7, 2880497), (17, 1186087), (23, 876673), (53, 380443), (119, 169441), (139, 145061), (161, 125239), (371, 54349), (391, 51569), (901, 22379), (973, 20723), (1219, 16541), (2363, 8533), (2737, 7367), (3197, 6307)]