20296997

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1$

素因数の和:281

約数の個数: 32

約数和(自身を含む): 26542080

約数和(自身を除く): 6245083

約数列:

[1, 7, 17, 19, 47, 119, 133, 191, 323, 329, 799, 893, 1337, 2261, 3247, 3629, 5593, 6251, 8977, 15181, 22729, 25403, 61693, 62839, 106267, 152609, 170563, 431851, 1068263, 1193941, 2899571, 20296997]

約数ペア:

[(1, 20296997), (7, 2899571), (17, 1193941), (19, 1068263), (47, 431851), (119, 170563), (133, 152609), (191, 106267), (323, 62839), (329, 61693), (799, 25403), (893, 22729), (1337, 15181), (2261, 8977), (3247, 6251), (3629, 5593)]