17960721

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{127}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 26542080

約数和(自身を除く): 8581359

約数列:

[1, 3, 17, 47, 51, 59, 127, 141, 177, 381, 799, 1003, 2159, 2397, 2773, 3009, 5969, 6477, 7493, 8319, 17907, 22479, 47141, 101473, 127381, 141423, 304419, 352171, 382143, 1056513, 5986907, 17960721]

約数ペア:

[(1, 17960721), (3, 5986907), (17, 1056513), (47, 382143), (51, 352171), (59, 304419), (127, 141423), (141, 127381), (177, 101473), (381, 47141), (799, 22479), (1003, 17907), (2159, 8319), (2397, 7493), (2773, 6477), (3009, 5969)]