20217525097

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{263}}^1\times {\mathrm{1123}}^1$

素因数の和:1538

約数の個数: 48

約数和(自身を含む): 25979830272

約数和(自身を除く): 5762305175

約数列:

[1, 7, 11, 49, 77, 127, 263, 539, 889, 1123, 1397, 1841, 2893, 6223, 7861, 9779, 12353, 12887, 20251, 33401, 55027, 68453, 86471, 141757, 142621, 233807, 295349, 367411, 605297, 998347, 1568831, 1636649, 2067443, 2571877, 3248839, 6988429, 10981817, 14472101, 18003139, 22741873, 37509323, 76872719, 159193111, 262565261, 412602553, 1837956827, 2888217871, 20217525097]

約数ペア:

[(1, 20217525097), (7, 2888217871), (11, 1837956827), (49, 412602553), (77, 262565261), (127, 159193111), (263, 76872719), (539, 37509323), (889, 22741873), (1123, 18003139), (1397, 14472101), (1841, 10981817), (2893, 6988429), (6223, 3248839), (7861, 2571877), (9779, 2067443), (12353, 1636649), (12887, 1568831), (20251, 998347), (33401, 605297), (55027, 367411), (68453, 295349), (86471, 233807), (141757, 142621)]