20717751943

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{293}}^1\times {\mathrm{12967}}^1$

素因数の和:13327

約数の個数: 32

約数和(自身を含む): 25620618240

約数和(自身を除く): 4902866297

約数列:

[1, 7, 19, 41, 133, 287, 293, 779, 2051, 5453, 5567, 12013, 12967, 38969, 84091, 90769, 228247, 246373, 531647, 1597729, 1724611, 3721529, 3799331, 10101293, 26595317, 70709051, 72187289, 155772571, 505311023, 1090407997, 2959678849, 20717751943]

約数ペア:

[(1, 20717751943), (7, 2959678849), (19, 1090407997), (41, 505311023), (133, 155772571), (287, 72187289), (293, 70709051), (779, 26595317), (2051, 10101293), (5453, 3799331), (5567, 3721529), (12013, 1724611), (12967, 1597729), (38969, 531647), (84091, 246373), (90769, 228247)]